/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:05:19,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:05:19,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:05:19,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:05:19,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:05:19,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:05:19,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:05:19,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:05:19,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:05:19,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:05:19,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:05:19,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:05:19,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:05:19,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:05:19,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:05:19,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:05:19,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:05:19,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:05:19,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:05:19,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:05:19,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:05:19,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:05:19,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:05:19,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:05:19,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:05:19,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:05:19,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:05:19,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:05:19,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:05:19,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:05:19,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:05:19,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:05:19,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:05:19,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:05:19,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:05:19,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:05:19,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:05:19,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:05:19,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:05:19,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:05:19,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:05:19,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:05:19,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:05:19,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:05:19,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:05:19,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:05:19,959 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:05:19,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:05:19,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:05:19,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:05:19,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:05:19,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:05:19,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:05:19,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:05:19,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:05:19,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:05:19,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:05:19,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:05:19,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:05:19,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:05:19,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:05:19,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:05:19,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:05:19,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:05:19,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:05:19,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:05:19,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:05:19,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:05:19,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:05:19,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:05:19,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:05:19,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:05:20,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:05:20,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:05:20,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:05:20,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:05:20,270 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:05:20,270 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-10-13 13:05:20,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b31746b0/6b44410b1a134922913d05ccede69ca0/FLAG42272e06b [2020-10-13 13:05:20,762 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:05:20,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-10-13 13:05:20,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b31746b0/6b44410b1a134922913d05ccede69ca0/FLAG42272e06b [2020-10-13 13:05:21,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b31746b0/6b44410b1a134922913d05ccede69ca0 [2020-10-13 13:05:21,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:05:21,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:05:21,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:05:21,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:05:21,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:05:21,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45368341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21, skipping insertion in model container [2020-10-13 13:05:21,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:05:21,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:05:21,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:05:21,369 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:05:21,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:05:21,399 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:05:21,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21 WrapperNode [2020-10-13 13:05:21,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:05:21,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:05:21,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:05:21,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:05:21,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... [2020-10-13 13:05:21,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:05:21,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:05:21,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:05:21,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:05:21,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:05:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:05:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:05:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-13 13:05:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:05:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 13:05:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:05:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-13 13:05:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:05:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:05:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:05:21,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:05:21,737 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 13:05:21,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:21 BoogieIcfgContainer [2020-10-13 13:05:21,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:05:21,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:05:21,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:05:21,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:05:21,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:05:21" (1/3) ... [2020-10-13 13:05:21,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d87c01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:21, skipping insertion in model container [2020-10-13 13:05:21,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:21" (2/3) ... [2020-10-13 13:05:21,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d87c01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:21, skipping insertion in model container [2020-10-13 13:05:21,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:21" (3/3) ... [2020-10-13 13:05:21,749 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-2.c [2020-10-13 13:05:21,760 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:05:21,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:05:21,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:05:21,802 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:05:21,802 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:05:21,802 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:05:21,802 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:05:21,802 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:05:21,803 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:05:21,803 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:05:21,803 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:05:21,818 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-13 13:05:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 13:05:21,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:21,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:21,826 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:21,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:21,831 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-10-13 13:05:21,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:21,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052957553] [2020-10-13 13:05:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:21,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:05:22,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 13:05:22,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:05:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:05:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:22,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:05:22,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:22,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:05:22,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:22,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:22,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:05:22,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:22,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:05:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:05:22,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052957553] [2020-10-13 13:05:22,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:05:22,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 13:05:22,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227579567] [2020-10-13 13:05:22,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 13:05:22,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:22,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 13:05:22,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:05:22,446 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-13 13:05:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:22,489 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-13 13:05:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 13:05:22,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 13:05:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:22,500 INFO L225 Difference]: With dead ends: 32 [2020-10-13 13:05:22,501 INFO L226 Difference]: Without dead ends: 18 [2020-10-13 13:05:22,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:05:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-13 13:05:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-13 13:05:22,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-13 13:05:22,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-13 13:05:22,549 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-13 13:05:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:22,549 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-13 13:05:22,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 13:05:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-13 13:05:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-13 13:05:22,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:22,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:22,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:05:22,553 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:22,553 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-10-13 13:05:22,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:22,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992882199] [2020-10-13 13:05:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 13:05:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 13:05:22,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:05:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:05:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:05:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:22,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:22,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:22,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:22,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:22,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:22,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:05:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:22,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:22,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:22,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:22,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:22,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:05:22,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:22,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:22,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 13:05:23,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992882199] [2020-10-13 13:05:23,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:23,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 13:05:23,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044328205] [2020-10-13 13:05:23,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:05:23,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:23,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:05:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:05:23,032 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-10-13 13:05:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:23,065 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-13 13:05:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:05:23,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-13 13:05:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:23,067 INFO L225 Difference]: With dead ends: 25 [2020-10-13 13:05:23,068 INFO L226 Difference]: Without dead ends: 21 [2020-10-13 13:05:23,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:05:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-13 13:05:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-13 13:05:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-13 13:05:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-13 13:05:23,076 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-13 13:05:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:23,077 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-13 13:05:23,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:05:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-13 13:05:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-13 13:05:23,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:23,078 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:23,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:05:23,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-10-13 13:05:23,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:23,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293025220] [2020-10-13 13:05:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 13:05:23,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-13 13:05:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:05:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:05:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:05:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:23,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:23,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:23,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:23,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:23,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:23,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:23,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:05:23,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:23,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:23,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:23,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:23,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:23,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:05:23,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:23,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:23,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:23,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:05:23,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 13:05:23,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293025220] [2020-10-13 13:05:23,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:23,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 13:05:23,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548667147] [2020-10-13 13:05:23,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:05:23,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:23,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:05:23,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:05:23,605 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-13 13:05:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:23,640 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-13 13:05:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:05:23,641 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-13 13:05:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:23,642 INFO L225 Difference]: With dead ends: 28 [2020-10-13 13:05:23,642 INFO L226 Difference]: Without dead ends: 24 [2020-10-13 13:05:23,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:05:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-13 13:05:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-13 13:05:23,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-13 13:05:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-13 13:05:23,650 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-13 13:05:23,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:23,650 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-13 13:05:23,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:05:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-13 13:05:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 13:05:23,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:23,653 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:23,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:05:23,653 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:23,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:23,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-10-13 13:05:23,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:23,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856705921] [2020-10-13 13:05:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:23,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:05:24,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-13 13:05:24,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:05:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 13:05:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:05:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:24,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:24,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:24,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:24,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:05:24,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:05:24,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:24,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:24,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:05:24,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:24,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:24,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:24,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:24,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:24,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:05:24,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:05:24,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856705921] [2020-10-13 13:05:24,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:24,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:05:24,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120299486] [2020-10-13 13:05:24,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:05:24,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:24,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:05:24,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:05:24,312 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2020-10-13 13:05:24,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:24,347 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-13 13:05:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:05:24,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-10-13 13:05:24,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:24,349 INFO L225 Difference]: With dead ends: 31 [2020-10-13 13:05:24,349 INFO L226 Difference]: Without dead ends: 27 [2020-10-13 13:05:24,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:05:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-13 13:05:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-13 13:05:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-13 13:05:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-13 13:05:24,356 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-13 13:05:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:24,357 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-13 13:05:24,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:05:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-13 13:05:24,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 13:05:24,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:24,358 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:24,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:05:24,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:24,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:24,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-10-13 13:05:24,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:24,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718240184] [2020-10-13 13:05:24,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:24,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:24,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 13:05:25,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-13 13:05:25,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:05:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 13:05:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:05:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:25,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:25,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:25,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:25,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 13:05:25,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:25,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:05:25,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:25,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:05:25,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:25,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:05:25,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:25,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:25,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:25,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:25,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:25,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:25,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 13:05:25,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718240184] [2020-10-13 13:05:25,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:25,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 13:05:25,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039784221] [2020-10-13 13:05:25,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:05:25,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:25,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:05:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:05:25,721 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 13 states. [2020-10-13 13:05:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:25,793 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-13 13:05:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:05:25,793 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-13 13:05:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:25,795 INFO L225 Difference]: With dead ends: 34 [2020-10-13 13:05:25,795 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 13:05:25,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:05:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 13:05:25,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-13 13:05:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 13:05:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-13 13:05:25,803 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-13 13:05:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:25,803 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-13 13:05:25,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:05:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-13 13:05:25,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 13:05:25,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:25,806 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:25,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:05:25,806 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:25,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:25,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-10-13 13:05:25,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:25,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860538673] [2020-10-13 13:05:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:26,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:26,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 13:05:26,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:26,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-13 13:05:26,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:26,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 13:05:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 13:05:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:05:26,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:26,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:26,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:26,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:26,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:26,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:26,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:26,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:26,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 13:05:26,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:26,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:26,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:26,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:26,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:26,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:26,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:26,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:26,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:26,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 13:05:26,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:26,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:27,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:27,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:27,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:27,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:05:27,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:27,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:27,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:27,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:27,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:27,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:27,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:27,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:05:27,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:27,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:27,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:27,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:27,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:27,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:27,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:27,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:05:27,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:27,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:27,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:27,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:27,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:27,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:27,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:27,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 13:05:27,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860538673] [2020-10-13 13:05:27,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:27,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 13:05:27,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407893072] [2020-10-13 13:05:27,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:05:27,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:27,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:05:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:05:27,221 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-10-13 13:05:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:27,266 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-13 13:05:27,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:05:27,267 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2020-10-13 13:05:27,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:27,269 INFO L225 Difference]: With dead ends: 37 [2020-10-13 13:05:27,269 INFO L226 Difference]: Without dead ends: 33 [2020-10-13 13:05:27,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:05:27,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-13 13:05:27,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-13 13:05:27,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 13:05:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-13 13:05:27,276 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-13 13:05:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:27,277 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-13 13:05:27,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:05:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-13 13:05:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 13:05:27,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:27,279 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:27,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:05:27,279 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-10-13 13:05:27,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:27,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093919337] [2020-10-13 13:05:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:27,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:28,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:28,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 13:05:28,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:28,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-10-13 13:05:28,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:05:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-13 13:05:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:05:28,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:28,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:28,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:28,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:28,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:28,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:05:28,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:28,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:28,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:28,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:28,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:28,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 13:05:28,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:28,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:28,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:28,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:28,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:28,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:28,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:28,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 13:05:28,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:28,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:28,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:28,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:28,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:28,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:28,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:05:28,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:28,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:29,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:29,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:29,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:29,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:29,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 13:05:29,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:29,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:29,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:29,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:29,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:29,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:29,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:29,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:05:29,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:29,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:05:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:29,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:29,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:29,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:29,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:29,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:29,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:29,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-13 13:05:29,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093919337] [2020-10-13 13:05:29,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:29,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 13:05:29,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170278747] [2020-10-13 13:05:29,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:05:29,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:29,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:05:29,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:05:29,253 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 17 states. [2020-10-13 13:05:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:29,300 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-13 13:05:29,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:05:29,300 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-10-13 13:05:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:29,302 INFO L225 Difference]: With dead ends: 40 [2020-10-13 13:05:29,302 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 13:05:29,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:05:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 13:05:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-13 13:05:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 13:05:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-13 13:05:29,309 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-13 13:05:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:29,310 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-13 13:05:29,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:05:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-13 13:05:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 13:05:29,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:29,311 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:29,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:05:29,312 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:29,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:29,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-10-13 13:05:29,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:29,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627954304] [2020-10-13 13:05:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:29,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:29,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 13:05:32,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2739 [2020-10-13 13:05:32,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 13:05:32,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 13:05:32,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:05:32,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:32,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:32,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:32,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 13:05:32,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:32,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:32,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:05:32,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:32,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 13:05:32,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:32,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:32,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:05:32,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:32,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:32,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:05:32,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:32,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:32,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:32,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:05:32,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:32,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:32,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:05:32,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:32,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:32,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:32,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:32,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:32,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:32,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:32,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-13 13:05:32,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627954304] [2020-10-13 13:05:32,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:32,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 13:05:32,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969039446] [2020-10-13 13:05:32,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:05:32,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:32,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:05:32,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:05:32,906 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 19 states. [2020-10-13 13:05:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:32,981 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-13 13:05:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:05:32,982 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-10-13 13:05:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:32,983 INFO L225 Difference]: With dead ends: 43 [2020-10-13 13:05:32,983 INFO L226 Difference]: Without dead ends: 39 [2020-10-13 13:05:32,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:05:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-13 13:05:32,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-13 13:05:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 13:05:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-13 13:05:32,994 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-13 13:05:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:32,995 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-13 13:05:32,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:05:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-13 13:05:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 13:05:32,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:32,998 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:32,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:05:32,999 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-10-13 13:05:33,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:33,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152695775] [2020-10-13 13:05:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:33,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:33,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:34,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:34,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 13:05:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1525 [2020-10-13 13:05:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:05:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 13:05:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:34,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:34,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:34,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:34,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:34,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:34,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:34,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:34,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:34,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:34,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:34,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:34,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:34,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 13:05:34,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:34,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:34,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:34,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:34,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:34,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:34,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 13:05:34,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:34,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:34,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:34,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:34,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:34,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:34,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:34,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:34,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 13:05:34,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 13:05:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:35,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:05:35,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:35,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:05:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:35,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:05:35,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:35,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:35,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:35,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:05:35,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:35,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:35,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:35,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:05:35,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:35,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-13 13:05:35,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152695775] [2020-10-13 13:05:35,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:35,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 13:05:35,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373714882] [2020-10-13 13:05:35,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:05:35,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:35,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:05:35,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:05:35,398 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 21 states. [2020-10-13 13:05:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:35,452 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-13 13:05:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:05:35,453 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 61 [2020-10-13 13:05:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:35,454 INFO L225 Difference]: With dead ends: 46 [2020-10-13 13:05:35,454 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 13:05:35,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:05:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 13:05:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-13 13:05:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 13:05:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-13 13:05:35,467 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-13 13:05:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:35,468 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-13 13:05:35,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 13:05:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-13 13:05:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:05:35,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:35,470 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:35,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:05:35,471 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:35,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-10-13 13:05:35,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:35,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040825465] [2020-10-13 13:05:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:35,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 13:05:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2263 [2020-10-13 13:05:37,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:05:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 13:05:37,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 13:05:37,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:37,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:37,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:37,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:37,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:37,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:37,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:38,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 13:05:38,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 13:05:38,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:38,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 13:05:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:38,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 13:05:38,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:38,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 13:05:38,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:38,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 13:05:38,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:38,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:05:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:38,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:05:38,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:38,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:05:38,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:38,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:38,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:38,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:38,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:38,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:05:38,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:38,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:38,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:38,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:38,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 13:05:38,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040825465] [2020-10-13 13:05:38,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:38,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 13:05:38,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109685533] [2020-10-13 13:05:38,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 13:05:38,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:38,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 13:05:38,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:05:38,916 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 23 states. [2020-10-13 13:05:38,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:38,964 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-13 13:05:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 13:05:38,964 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2020-10-13 13:05:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:38,966 INFO L225 Difference]: With dead ends: 49 [2020-10-13 13:05:38,966 INFO L226 Difference]: Without dead ends: 45 [2020-10-13 13:05:38,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:05:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-13 13:05:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-13 13:05:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 13:05:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-13 13:05:38,972 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-13 13:05:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:38,973 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-13 13:05:38,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 13:05:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-13 13:05:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 13:05:38,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:38,974 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:38,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:05:38,974 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:38,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-10-13 13:05:38,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:38,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52339154] [2020-10-13 13:05:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:38,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:39,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:41,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:05:41,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2104 [2020-10-13 13:05:41,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 13:05:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-13 13:05:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:05:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:41,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:41,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:41,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:41,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:41,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:41,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:41,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:41,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-13 13:05:41,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:05:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:41,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:41,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:41,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:41,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:41,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:41,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-13 13:05:41,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:41,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:41,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:41,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:41,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:41,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:41,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:41,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 13:05:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:42,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:42,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-13 13:05:42,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:42,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:42,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:42,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 13:05:42,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:42,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:42,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:42,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 13:05:42,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:42,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:42,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:05:42,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:42,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:42,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:05:42,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:05:42,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:42,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:05:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:42,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:42,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:42,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:42,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:05:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-13 13:05:42,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52339154] [2020-10-13 13:05:42,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:42,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 13:05:42,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516746990] [2020-10-13 13:05:42,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 13:05:42,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:42,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 13:05:42,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:05:42,734 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 25 states. [2020-10-13 13:05:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:42,790 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-13 13:05:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:05:42,791 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2020-10-13 13:05:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:42,793 INFO L225 Difference]: With dead ends: 52 [2020-10-13 13:05:42,793 INFO L226 Difference]: Without dead ends: 48 [2020-10-13 13:05:42,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:05:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-13 13:05:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-13 13:05:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 13:05:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-13 13:05:42,799 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-13 13:05:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:42,800 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-13 13:05:42,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 13:05:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-13 13:05:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 13:05:42,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:42,802 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:42,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:05:42,802 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:42,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:42,802 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-10-13 13:05:42,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:42,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282331498] [2020-10-13 13:05:42,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:42,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:45,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2466 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 13:05:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:45,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:45,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:45,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:05:45,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:45,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:45,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:45,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:45,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:45,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-13 13:05:45,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:05:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:45,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:45,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:45,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:45,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:45,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:45,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:05:45,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:45,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:46,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 13:05:46,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:46,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 13:05:46,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:46,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 13:05:46,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:46,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:46,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:46,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:05:46,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:46,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:46,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:05:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:46,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:05:46,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:46,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:46,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:46,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-13 13:05:46,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282331498] [2020-10-13 13:05:46,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:46,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-13 13:05:46,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941769567] [2020-10-13 13:05:46,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-13 13:05:46,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:46,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-13 13:05:46,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:05:46,715 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 27 states. [2020-10-13 13:05:46,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:46,786 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-13 13:05:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 13:05:46,786 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-13 13:05:46,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:46,787 INFO L225 Difference]: With dead ends: 55 [2020-10-13 13:05:46,787 INFO L226 Difference]: Without dead ends: 51 [2020-10-13 13:05:46,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:05:46,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-13 13:05:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-13 13:05:46,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 13:05:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-13 13:05:46,794 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-13 13:05:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:46,795 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-13 13:05:46,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-13 13:05:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-13 13:05:46,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:05:46,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:46,796 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:46,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:05:46,796 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:46,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:46,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-10-13 13:05:46,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:46,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119610359] [2020-10-13 13:05:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:46,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:49,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:49,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 13:05:49,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:49,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2704 [2020-10-13 13:05:49,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 13:05:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:05:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:05:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:49,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:49,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:49,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:49,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:49,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:49,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:49,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:50,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-13 13:05:50,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:05:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:50,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:05:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:50,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:50,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:50,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 13:05:50,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:50,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:05:50,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:50,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:50,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:50,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:50,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:50,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:50,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 13:05:50,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:50,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:50,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:50,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:50,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:50,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:50,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 13:05:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:50,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 13:05:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:51,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:51,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:05:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:51,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:05:51,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:51,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:51,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:51,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:05:51,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:51,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:51,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:05:51,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:51,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 13:05:51,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119610359] [2020-10-13 13:05:51,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:51,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 13:05:51,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280527554] [2020-10-13 13:05:51,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 13:05:51,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:51,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 13:05:51,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:05:51,546 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 29 states. [2020-10-13 13:05:51,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:51,637 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-13 13:05:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:05:51,637 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 85 [2020-10-13 13:05:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:51,639 INFO L225 Difference]: With dead ends: 58 [2020-10-13 13:05:51,639 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 13:05:51,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:05:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 13:05:51,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-13 13:05:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 13:05:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-13 13:05:51,647 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-13 13:05:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:51,647 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-13 13:05:51,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 13:05:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-13 13:05:51,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 13:05:51,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:51,649 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:51,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:05:51,649 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:51,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:51,650 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-10-13 13:05:51,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:51,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907523234] [2020-10-13 13:05:51,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:51,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 13:05:55,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3425 [2020-10-13 13:05:55,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 13:05:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 13:05:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 13:05:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:05:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:55,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:55,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 13:05:55,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:05:55,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:55,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:05:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:55,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:55,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:05:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:55,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:55,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:56,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 13:05:56,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:56,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:56,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:56,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:05:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:56,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:56,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 13:05:56,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:56,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:05:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:56,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:56,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:05:56,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:56,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:56,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:56,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:05:56,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:56,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:56,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:05:56,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:56,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:56,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:56,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:56,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:56,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-13 13:05:57,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907523234] [2020-10-13 13:05:57,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:57,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 13:05:57,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099795130] [2020-10-13 13:05:57,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 13:05:57,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:57,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 13:05:57,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2020-10-13 13:05:57,080 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 31 states. [2020-10-13 13:05:57,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:57,169 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-13 13:05:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 13:05:57,170 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 91 [2020-10-13 13:05:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:57,171 INFO L225 Difference]: With dead ends: 61 [2020-10-13 13:05:57,172 INFO L226 Difference]: Without dead ends: 57 [2020-10-13 13:05:57,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2020-10-13 13:05:57,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-13 13:05:57,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-13 13:05:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 13:05:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-13 13:05:57,179 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-13 13:05:57,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:57,180 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-13 13:05:57,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 13:05:57,180 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-13 13:05:57,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 13:05:57,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:57,181 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:05:57,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:05:57,181 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:57,182 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-10-13 13:05:57,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:57,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679261276] [2020-10-13 13:05:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:01,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4634 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 13:06:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:06:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:01,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:01,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:01,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:01,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:01,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:01,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:01,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:01,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:02,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:02,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:02,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:02,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:02,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:02,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:02,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-13 13:06:02,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:02,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:02,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:02,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:02,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:03,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:06:03,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:03,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:03,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:06:03,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:03,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:03,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 13:06:03,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:03,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:06:03,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:03,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:03,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:03,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:03,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:03,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:03,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:03,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:06:03,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:03,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:03,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:04,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:04,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:06:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:04,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:04,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:04,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:04,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:04,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:04,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:06:04,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:04,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:04,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:04,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:04,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:04,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:04,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:04,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:04,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:04,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:04,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:06:04,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:04,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:04,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:04,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:04,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:04,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:06:04,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:04,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:04,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:04,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:04,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:06:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-13 13:06:04,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679261276] [2020-10-13 13:06:04,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:04,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-13 13:06:04,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609427103] [2020-10-13 13:06:04,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-13 13:06:04,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:04,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-13 13:06:04,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:06:04,376 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 33 states. [2020-10-13 13:06:04,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:04,472 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-13 13:06:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-13 13:06:04,473 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 97 [2020-10-13 13:06:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:04,474 INFO L225 Difference]: With dead ends: 64 [2020-10-13 13:06:04,474 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 13:06:04,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:06:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 13:06:04,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-13 13:06:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 13:06:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-13 13:06:04,491 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-13 13:06:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:04,492 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-13 13:06:04,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-13 13:06:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-13 13:06:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 13:06:04,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:04,498 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:04,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:06:04,498 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:04,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-10-13 13:06:04,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:04,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754615084] [2020-10-13 13:06:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:06:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 13:06:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:06:09,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:09,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:09,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:09,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:09,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:09,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:09,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:10,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:10,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:10,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:10,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:10,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:10,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:10,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:10,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-13 13:06:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:10,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:10,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:10,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:10,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 13:06:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:11,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 13:06:11,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:11,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 13:06:11,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:11,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 13:06:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:06:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:11,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:11,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:06:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:11,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:11,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:11,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:11,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:06:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-13 13:06:11,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754615084] [2020-10-13 13:06:11,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:11,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-13 13:06:11,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319138006] [2020-10-13 13:06:11,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-13 13:06:11,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:11,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-13 13:06:11,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:06:11,977 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-10-13 13:06:12,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:12,063 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-13 13:06:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-13 13:06:12,064 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-10-13 13:06:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:12,065 INFO L225 Difference]: With dead ends: 67 [2020-10-13 13:06:12,065 INFO L226 Difference]: Without dead ends: 63 [2020-10-13 13:06:12,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:06:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-13 13:06:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-13 13:06:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-13 13:06:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-13 13:06:12,072 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-13 13:06:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:12,073 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-13 13:06:12,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-13 13:06:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-13 13:06:12,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 13:06:12,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:12,074 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:12,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:06:12,075 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:12,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-10-13 13:06:12,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:12,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871270265] [2020-10-13 13:06:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:12,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:12,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:17,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:06:17,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:17,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:17,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:17,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:17,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:17,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:17,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:17,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:06:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:06:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:17,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:17,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:18,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:18,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:18,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:18,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-13 13:06:18,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:18,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:18,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:18,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:18,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:18,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:18,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:18,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:18,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:18,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:18,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:18,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:18,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:18,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:18,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:18,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:18,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:19,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:19,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:19,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 13:06:19,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:19,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:06:19,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:19,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:19,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:06:19,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:19,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:19,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:06:19,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:19,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:19,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:19,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:06:19,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:19,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:19,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:19,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:19,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:19,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:19,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:19,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:06:19,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-13 13:06:19,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871270265] [2020-10-13 13:06:19,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:19,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-13 13:06:19,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618561135] [2020-10-13 13:06:19,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-13 13:06:19,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:19,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-13 13:06:19,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 13:06:19,960 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 37 states. [2020-10-13 13:06:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:20,069 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-13 13:06:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 13:06:20,069 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 109 [2020-10-13 13:06:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:20,070 INFO L225 Difference]: With dead ends: 70 [2020-10-13 13:06:20,071 INFO L226 Difference]: Without dead ends: 66 [2020-10-13 13:06:20,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 13:06:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-13 13:06:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-13 13:06:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 13:06:20,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-13 13:06:20,079 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-13 13:06:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:20,083 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-13 13:06:20,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-13 13:06:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-13 13:06:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:06:20,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:20,085 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:20,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:06:20,085 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:20,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:20,085 INFO L82 PathProgramCache]: Analyzing trace with hash -464475409, now seen corresponding path program 17 times [2020-10-13 13:06:20,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:20,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354993058] [2020-10-13 13:06:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:25,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:25,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:06:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:25,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:25,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:25,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:25,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:25,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:25,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:25,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:25,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:25,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:25,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:06:25,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:25,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-10-13 13:06:25,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:06:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:06:25,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:26,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:26,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:06:26,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-13 13:06:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:06:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:06:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:26,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:26,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:27,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:27,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:27,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:27,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:27,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 13:06:27,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:28,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:28,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:28,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:28,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:28,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:28,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:06:28,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:28,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:06:28,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:28,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:28,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:06:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:28,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:28,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:06:28,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:28,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:28,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:28,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:28,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:28,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:28,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:29,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:29,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:29,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:29,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:06:29,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:29,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:29,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-13 13:06:29,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354993058] [2020-10-13 13:06:29,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:29,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-13 13:06:29,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357700755] [2020-10-13 13:06:29,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-13 13:06:29,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:29,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-13 13:06:29,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:06:29,130 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 39 states. [2020-10-13 13:06:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:29,215 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-13 13:06:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 13:06:29,215 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 115 [2020-10-13 13:06:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:29,216 INFO L225 Difference]: With dead ends: 73 [2020-10-13 13:06:29,216 INFO L226 Difference]: Without dead ends: 69 [2020-10-13 13:06:29,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:06:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-13 13:06:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-13 13:06:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-13 13:06:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-13 13:06:29,229 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-13 13:06:29,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:29,232 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-13 13:06:29,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-13 13:06:29,233 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-13 13:06:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 13:06:29,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:29,234 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:29,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:06:29,235 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:29,238 INFO L82 PathProgramCache]: Analyzing trace with hash 130115453, now seen corresponding path program 18 times [2020-10-13 13:06:29,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:29,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483171215] [2020-10-13 13:06:29,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:29,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:29,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:34,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:34,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 13:06:34,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 13:06:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:34,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:34,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:34,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:34,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:34,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:06:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:06:34,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:34,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:06:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:06:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:35,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:35,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:35,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:06:35,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:35,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-13 13:06:35,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:06:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:06:35,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:35,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:35,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:36,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:36,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:36,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:36,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:36,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:36,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:36,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:36,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:36,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:36,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 13:06:36,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:36,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:36,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:36,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 13:06:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:36,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:36,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:37,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:06:37,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:37,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 13:06:37,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:37,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:06:37,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:37,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:06:37,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:37,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:06:37,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:06:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:37,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:37,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:37,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:06:37,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-13 13:06:38,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483171215] [2020-10-13 13:06:38,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:38,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-13 13:06:38,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348128841] [2020-10-13 13:06:38,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-13 13:06:38,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:38,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-13 13:06:38,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1237, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 13:06:38,051 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 41 states. [2020-10-13 13:06:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:38,146 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-13 13:06:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-13 13:06:38,146 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 121 [2020-10-13 13:06:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:38,148 INFO L225 Difference]: With dead ends: 76 [2020-10-13 13:06:38,148 INFO L226 Difference]: Without dead ends: 72 [2020-10-13 13:06:38,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=403, Invalid=1237, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 13:06:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-13 13:06:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-13 13:06:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-13 13:06:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-13 13:06:38,155 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-13 13:06:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:38,155 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-13 13:06:38,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-13 13:06:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-13 13:06:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:06:38,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:38,157 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:38,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:06:38,157 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:38,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2010955025, now seen corresponding path program 19 times [2020-10-13 13:06:38,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:38,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313644576] [2020-10-13 13:06:38,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:38,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:38,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:43,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:43,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:06:43,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:06:43,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 13:06:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-13 13:06:43,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:06:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:43,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:43,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:43,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:43,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:43,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:43,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:43,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:43,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:43,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:43,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:06:43,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:43,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-13 13:06:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:06:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:06:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:43,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:44,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:44,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:06:44,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-13 13:06:44,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:06:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:44,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:44,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:06:44,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:44,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:44,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:45,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:45,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:06:45,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:45,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:45,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:45,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:45,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:45,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:45,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:45,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:45,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:45,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:45,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:45,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:45,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:45,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:45,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:46,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:46,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:46,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 13:06:46,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:46,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:46,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:46,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:46,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 13:06:46,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:46,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:46,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:46,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:46,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:46,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:46,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:46,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:46,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 13:06:46,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:47,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:06:47,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:06:47,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:47,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:06:47,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:06:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:47,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:06:47,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:47,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:47,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:47,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:47,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:47,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:47,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:06:47,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-13 13:06:47,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313644576] [2020-10-13 13:06:47,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:47,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-13 13:06:47,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274472877] [2020-10-13 13:06:47,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-13 13:06:47,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:47,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-13 13:06:47,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:06:47,617 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 43 states. [2020-10-13 13:06:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:47,703 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-13 13:06:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-13 13:06:47,703 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 127 [2020-10-13 13:06:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:47,705 INFO L225 Difference]: With dead ends: 79 [2020-10-13 13:06:47,705 INFO L226 Difference]: Without dead ends: 75 [2020-10-13 13:06:47,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:06:47,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-13 13:06:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-13 13:06:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-13 13:06:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-13 13:06:47,711 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-13 13:06:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:47,712 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-13 13:06:47,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-13 13:06:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-13 13:06:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:06:47,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:47,714 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:47,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:06:47,714 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:47,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash -799288067, now seen corresponding path program 20 times [2020-10-13 13:06:47,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:47,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772133314] [2020-10-13 13:06:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:47,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:06:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:52,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:06:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:52,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:52,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:06:52,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:06:52,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:06:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:06:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:52,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:06:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:52,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:06:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:53,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 13:06:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:53,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:53,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:06:53,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:53,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:54,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:06:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:06:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:54,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:54,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:54,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:06:54,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:54,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-13 13:06:54,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:54,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:06:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:54,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:06:54,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:54,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:54,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:06:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:06:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:55,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:55,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:55,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:55,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:06:55,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-13 13:06:55,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:06:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:55,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:06:55,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:55,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:06:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:55,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:56,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:56,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:06:56,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-13 13:06:56,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:06:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:06:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:56,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:56,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:56,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:06:56,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:56,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 13:06:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:06:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:06:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:56,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:56,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:56,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:06:56,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:06:56,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:56,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:56,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:06:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:06:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:56,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:56,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:56,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:56,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:06:56,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 13:06:56,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:06:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:06:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:56,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:06:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 13:06:57,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:06:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:06:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:06:57,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 13:06:57,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:06:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:06:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:06:57,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:06:57,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:06:57,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:06:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:06:57,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:06:57,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:06:57,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:06:57,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:06:57,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:06:57,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:06:57,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:06:57,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:06:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:06:57,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:06:57,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:06:57,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:06:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:06:57,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:06:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:06:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:06:57,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:06:57,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:06:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:06:57,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:06:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:06:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:06:57,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:06:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:06:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:06:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:06:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:06:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:06:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:06:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-10-13 13:06:57,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772133314] [2020-10-13 13:06:57,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:06:57,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-13 13:06:57,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969375243] [2020-10-13 13:06:57,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-13 13:06:57,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:06:57,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-13 13:06:57,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:06:57,876 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 45 states. [2020-10-13 13:06:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:06:57,968 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-13 13:06:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-13 13:06:57,968 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 133 [2020-10-13 13:06:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:06:57,970 INFO L225 Difference]: With dead ends: 82 [2020-10-13 13:06:57,970 INFO L226 Difference]: Without dead ends: 78 [2020-10-13 13:06:57,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:06:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-13 13:06:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-13 13:06:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-13 13:06:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-10-13 13:06:57,975 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 133 [2020-10-13 13:06:57,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:06:57,976 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-10-13 13:06:57,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-13 13:06:57,976 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-10-13 13:06:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 13:06:57,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:06:57,978 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:06:57,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:06:57,978 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:06:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:06:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1226192145, now seen corresponding path program 21 times [2020-10-13 13:06:57,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:06:57,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563969967] [2020-10-13 13:06:57,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:06:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:06:57,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:06:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 13:07:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:03,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:03,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:07:03,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-10-13 13:07:03,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:07:03,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 13:07:03,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:04,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 13:07:04,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:04,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:07:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:05,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:05,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:07:05,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:05,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:07:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:07:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:07:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:07,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 13:07:07,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:07:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:07:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:07:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:07,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 13:07:07,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:07:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:08,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 13:07:08,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:07:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:08,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 13:07:08,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:07:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 13:07:08,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:07:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:08,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 13:07:08,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:07:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:08,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:07:08,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:07:08,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:08,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:07:08,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:07:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:08,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:07:08,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:07:08,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:08,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:07:08,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:07:08,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:07:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:09,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:07:09,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:07:09,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:09,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:07:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:07:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:07:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-10-13 13:07:09,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563969967] [2020-10-13 13:07:09,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:09,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-13 13:07:09,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624931649] [2020-10-13 13:07:09,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-13 13:07:09,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:09,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-13 13:07:09,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:07:09,204 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 47 states. [2020-10-13 13:07:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:09,315 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-13 13:07:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-13 13:07:09,316 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 139 [2020-10-13 13:07:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:09,318 INFO L225 Difference]: With dead ends: 85 [2020-10-13 13:07:09,318 INFO L226 Difference]: Without dead ends: 81 [2020-10-13 13:07:09,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:07:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-13 13:07:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-13 13:07:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-13 13:07:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-10-13 13:07:09,323 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 139 [2020-10-13 13:07:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:09,324 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-10-13 13:07:09,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-13 13:07:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-10-13 13:07:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 13:07:09,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:09,326 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:09,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 13:07:09,326 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:09,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1155535485, now seen corresponding path program 22 times [2020-10-13 13:07:09,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:09,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431796267] [2020-10-13 13:07:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-13 13:07:14,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:14,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:14,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:14,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:14,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-13 13:07:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 13:07:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:16,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:16,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:07:16,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-13 13:07:16,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:07:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 13:07:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:07:17,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:07:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:17,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-13 13:07:17,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:07:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:18,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:18,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:18,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:18,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:18,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-13 13:07:18,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:07:18,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:18,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:18,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:18,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-13 13:07:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:07:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:19,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-13 13:07:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:07:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:19,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:07:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:19,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 13:07:19,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:07:19,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:19,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:07:19,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:19,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 13:07:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:07:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 13:07:20,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:07:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:20,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 13:07:20,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:20,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:07:20,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:20,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 13:07:20,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:07:20,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:20,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:07:20,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:07:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:07:20,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:07:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:20,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:07:20,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:07:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:20,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:07:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:07:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:20,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:20,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:20,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:07:20,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:20,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:07:20,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:07:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:20,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:20,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:20,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:07:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:07:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-10-13 13:07:21,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431796267] [2020-10-13 13:07:21,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:21,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-13 13:07:21,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844864869] [2020-10-13 13:07:21,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-13 13:07:21,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:21,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-13 13:07:21,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=1773, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:07:21,075 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 49 states. [2020-10-13 13:07:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:21,196 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-13 13:07:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-13 13:07:21,196 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 145 [2020-10-13 13:07:21,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:21,198 INFO L225 Difference]: With dead ends: 88 [2020-10-13 13:07:21,198 INFO L226 Difference]: Without dead ends: 84 [2020-10-13 13:07:21,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=579, Invalid=1773, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:07:21,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-13 13:07:21,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-13 13:07:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-13 13:07:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-13 13:07:21,205 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 145 [2020-10-13 13:07:21,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:21,205 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-13 13:07:21,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-13 13:07:21,205 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-13 13:07:21,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:07:21,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:21,207 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:21,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 13:07:21,208 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:21,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:21,208 INFO L82 PathProgramCache]: Analyzing trace with hash 478692079, now seen corresponding path program 23 times [2020-10-13 13:07:21,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:21,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145271215] [2020-10-13 13:07:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:26,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 13:07:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 13:07:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:07:26,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:26,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:26,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:26,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:26,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:26,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:26,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:26,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:07:27,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-10-13 13:07:27,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 13:07:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-13 13:07:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:27,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:07:27,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-10-13 13:07:27,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:07:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-13 13:07:27,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 13:07:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:07:29,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:29,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 13:07:29,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:29,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:29,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:07:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:29,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:29,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:30,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:30,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:30,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:07:30,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:30,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:30,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:30,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:07:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:30,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:31,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-13 13:07:31,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:07:31,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:07:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:31,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:07:31,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:32,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:07:32,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:32,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 13:07:32,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:32,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:07:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:32,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 13:07:32,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:07:32,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:32,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-13 13:07:32,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:07:33,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 42 [2020-10-13 13:07:33,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 13:07:33,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:07:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:33,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 13:07:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:07:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:33,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 13:07:33,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:33,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:07:33,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:33,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:33,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 13:07:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:07:33,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:33,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:07:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:07:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:33,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:07:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:07:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:33,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:07:33,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:07:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:34,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:34,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:34,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:07:34,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:07:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:34,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:34,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:34,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:34,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:34,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:07:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:34,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:34,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:34,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:34,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:07:34,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:34,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:07:34,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:07:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2020-10-13 13:07:34,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145271215] [2020-10-13 13:07:34,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:34,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-13 13:07:34,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813783037] [2020-10-13 13:07:34,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-13 13:07:34,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:34,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-13 13:07:34,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 13:07:34,398 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 51 states. [2020-10-13 13:07:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:34,513 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-13 13:07:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-13 13:07:34,514 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 151 [2020-10-13 13:07:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:34,516 INFO L225 Difference]: With dead ends: 91 [2020-10-13 13:07:34,516 INFO L226 Difference]: Without dead ends: 87 [2020-10-13 13:07:34,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 13:07:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-13 13:07:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-13 13:07:34,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-13 13:07:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-13 13:07:34,523 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 151 [2020-10-13 13:07:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:34,523 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-13 13:07:34,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-13 13:07:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-13 13:07:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 13:07:34,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:34,525 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:34,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 13:07:34,526 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:34,526 INFO L82 PathProgramCache]: Analyzing trace with hash -414572547, now seen corresponding path program 24 times [2020-10-13 13:07:34,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:34,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615784203] [2020-10-13 13:07:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:39,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-13 13:07:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:07:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:39,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:39,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:39,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:39,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:39,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 902 [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 13:07:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-13 13:07:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:40,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 13:07:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-13 13:07:41,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:41,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-13 13:07:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:07:42,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 683 [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 13:07:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 572 [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:07:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 13:07:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:43,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:44,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-13 13:07:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:44,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:44,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-13 13:07:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 13:07:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:44,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:45,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-13 13:07:45,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-13 13:07:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:45,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 13:07:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:07:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:46,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 13:07:46,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:46,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:07:46,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:46,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 13:07:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:07:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:46,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 13:07:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:07:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:47,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-13 13:07:47,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:07:47,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:47,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:47,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 13:07:47,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:07:47,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:47,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:07:47,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:07:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:47,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 13:07:47,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:47,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:07:47,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:47,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:07:47,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:47,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:07:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:47,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:07:47,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:07:47,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:47,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:48,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:07:48,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:07:48,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:48,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:07:48,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:07:48,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:48,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:48,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:48,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:07:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:48,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:48,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:07:48,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:07:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:48,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:48,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:48,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:07:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:07:48,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2020-10-13 13:07:48,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615784203] [2020-10-13 13:07:48,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:48,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-13 13:07:48,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147995268] [2020-10-13 13:07:48,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-13 13:07:48,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:48,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-13 13:07:48,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=2077, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 13:07:48,516 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 53 states. [2020-10-13 13:07:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:48,627 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-10-13 13:07:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-13 13:07:48,627 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 157 [2020-10-13 13:07:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:48,629 INFO L225 Difference]: With dead ends: 94 [2020-10-13 13:07:48,629 INFO L226 Difference]: Without dead ends: 90 [2020-10-13 13:07:48,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=679, Invalid=2077, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 13:07:48,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-13 13:07:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-10-13 13:07:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-13 13:07:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-10-13 13:07:48,634 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 157 [2020-10-13 13:07:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:48,635 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-10-13 13:07:48,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-13 13:07:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-10-13 13:07:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 13:07:48,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:48,637 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:48,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 13:07:48,638 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:48,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:48,638 INFO L82 PathProgramCache]: Analyzing trace with hash -975000849, now seen corresponding path program 25 times [2020-10-13 13:07:48,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:48,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307430311] [2020-10-13 13:07:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 13:07:48,660 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 13:07:48,660 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 13:07:48,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 13:07:48,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:07:48 BoogieIcfgContainer [2020-10-13 13:07:48,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 13:07:48,690 INFO L168 Benchmark]: Toolchain (without parser) took 147519.33 ms. Allocated memory was 146.3 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 101.1 MB in the beginning and 494.6 MB in the end (delta: -393.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,690 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.61 ms. Allocated memory is still 146.3 MB. Free memory was 100.9 MB in the beginning and 91.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,691 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 146.3 MB. Free memory was 91.6 MB in the beginning and 90.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,692 INFO L168 Benchmark]: RCFGBuilder took 312.17 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 90.1 MB in the beginning and 171.0 MB in the end (delta: -80.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,693 INFO L168 Benchmark]: TraceAbstraction took 146945.78 ms. Allocated memory was 202.9 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 171.0 MB in the beginning and 494.6 MB in the end (delta: -323.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 13:07:48,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.61 ms. Allocated memory is still 146.3 MB. Free memory was 100.9 MB in the beginning and 91.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 146.3 MB. Free memory was 91.6 MB in the beginning and 90.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.17 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 90.1 MB in the beginning and 171.0 MB in the end (delta: -80.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 146945.78 ms. Allocated memory was 202.9 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 171.0 MB in the beginning and 494.6 MB in the end (delta: -323.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 25; [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 25 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 146.8s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 379 SDtfs, 2 SDslu, 3125 SDs, 0 SdLazy, 1029 SolverSat, 92 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1427 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 677 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4606 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=25, 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, 25 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 143.8s InterpolantComputationTime, 2288 NumberOfCodeBlocks, 2288 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2100 ConstructedInterpolants, 0 QuantifiedInterpolants, 443376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 7500/15000 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...