/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_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:04:39,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:04:39,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:04:39,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:04:39,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:04:39,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:04:39,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:04:39,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:04:39,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:04:39,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:04:39,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:04:39,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:04:39,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:04:39,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:04:39,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:04:39,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:04:39,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:04:39,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:04:39,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:04:39,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:04:39,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:04:39,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:04:39,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:04:39,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:04:39,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:04:39,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:04:39,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:04:39,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:04:39,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:04:39,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:04:39,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:04:39,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:04:39,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:04:39,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:04:39,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:04:39,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:04:39,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:04:39,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:04:39,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:04:39,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:04:39,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:04:39,383 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 13:04:39,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:04:39,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:04:39,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:04:39,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:04:39,409 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:04:39,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:04:39,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:04:39,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:04:39,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:04:39,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:04:39,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:04:39,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:04:39,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:04:39,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:04:39,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:04:39,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:04:39,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:04:39,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:04:39,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:04:39,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:04:39,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:04:39,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:04:39,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:04:39,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:04:39,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:04:39,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:04:39,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:04:39,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:04:39,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:04:39,414 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 13:04:39,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:04:39,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:04:39,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:04:39,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:04:39,715 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:04:39,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-10-13 13:04:39,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b4e84b/3ee1f5981abb4f76b3c9b24e2636b010/FLAGd56b62ba7 [2020-10-13 13:04:40,231 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:04:40,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-10-13 13:04:40,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b4e84b/3ee1f5981abb4f76b3c9b24e2636b010/FLAGd56b62ba7 [2020-10-13 13:04:40,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b4e84b/3ee1f5981abb4f76b3c9b24e2636b010 [2020-10-13 13:04:40,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:04:40,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:04:40,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:04:40,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:04:40,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:04:40,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4f8bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40, skipping insertion in model container [2020-10-13 13:04:40,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:04:40,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:04:40,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:04:40,822 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:04:40,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:04:40,844 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:04:40,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40 WrapperNode [2020-10-13 13:04:40,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:04:40,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:04:40,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:04:40,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:04:40,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (1/1) ... [2020-10-13 13:04:40,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:04:40,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:04:40,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:04:40,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:04:40,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (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 13:04:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:04:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:04:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-13 13:04:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:04:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 13:04:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:04:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-13 13:04:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:04:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:04:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:04:41,172 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:04:41,172 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 13:04:41,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:04:41 BoogieIcfgContainer [2020-10-13 13:04:41,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:04:41,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:04:41,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:04:41,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:04:41,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:04:40" (1/3) ... [2020-10-13 13:04:41,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ec44dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:04:41, skipping insertion in model container [2020-10-13 13:04:41,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:04:40" (2/3) ... [2020-10-13 13:04:41,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ec44dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:04:41, skipping insertion in model container [2020-10-13 13:04:41,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:04:41" (3/3) ... [2020-10-13 13:04:41,183 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-10-13 13:04:41,193 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:04:41,200 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:04:41,214 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:04:41,238 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:04:41,238 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:04:41,238 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:04:41,238 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:04:41,238 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:04:41,239 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:04:41,239 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:04:41,239 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:04:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-13 13:04:41,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 13:04:41,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:41,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:04:41,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:41,272 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-10-13 13:04:41,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:41,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427277381] [2020-10-13 13:04:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:41,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:41,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:04:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 13:04:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:04:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:04:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:04:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:41,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:41,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:41,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:04:41,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:41,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:41,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:41,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 13:04:41,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:04:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:04:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:04:41,680 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 13:04:41,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427277381] [2020-10-13 13:04:41,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:04:41,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 13:04:41,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948548842] [2020-10-13 13:04:41,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 13:04:41,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:41,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 13:04:41,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:04:41,708 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-13 13:04:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:41,785 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-13 13:04:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 13:04:41,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 13:04:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:41,798 INFO L225 Difference]: With dead ends: 30 [2020-10-13 13:04:41,799 INFO L226 Difference]: Without dead ends: 18 [2020-10-13 13:04:41,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:04:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-13 13:04:41,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-13 13:04:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-13 13:04:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-13 13:04:41,848 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-13 13:04:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:41,849 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-13 13:04:41,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 13:04:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-13 13:04:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-13 13:04:41,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:41,852 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 13:04:41,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:04:41,852 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:41,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:41,853 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-10-13 13:04:41,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:41,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023828594] [2020-10-13 13:04:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 13:04:42,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 13:04:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:04:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:04:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:42,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:42,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:04:42,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:42,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:42,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:42,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:04:42,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:04:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:04:42,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:42,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:42,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:04:42,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,231 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 13:04:42,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023828594] [2020-10-13 13:04:42,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:42,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 13:04:42,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052476315] [2020-10-13 13:04:42,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 13:04:42,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:42,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 13:04:42,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:04:42,235 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-10-13 13:04:42,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:42,286 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-13 13:04:42,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:04:42,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-13 13:04:42,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:42,288 INFO L225 Difference]: With dead ends: 25 [2020-10-13 13:04:42,289 INFO L226 Difference]: Without dead ends: 21 [2020-10-13 13:04:42,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:04:42,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-13 13:04:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-13 13:04:42,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-13 13:04:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-13 13:04:42,297 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-13 13:04:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:42,298 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-13 13:04:42,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 13:04:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-13 13:04:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-13 13:04:42,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:42,302 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 13:04:42,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:04:42,303 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:42,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:42,303 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-10-13 13:04:42,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:42,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638591516] [2020-10-13 13:04:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 13:04:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 13:04:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:04:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:42,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:04:42,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:42,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:42,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:42,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:42,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:04:42,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:04:42,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:42,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:04:42,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:42,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:04:42,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:42,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:04:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:04:42,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638591516] [2020-10-13 13:04:42,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:42,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 13:04:42,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543064632] [2020-10-13 13:04:42,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:04:42,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:42,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:04:42,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:04:42,685 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-13 13:04:42,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:42,747 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-13 13:04:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:04:42,748 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-13 13:04:42,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:42,749 INFO L225 Difference]: With dead ends: 28 [2020-10-13 13:04:42,749 INFO L226 Difference]: Without dead ends: 24 [2020-10-13 13:04:42,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:04:42,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-13 13:04:42,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-13 13:04:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-13 13:04:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-13 13:04:42,757 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-13 13:04:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:42,757 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-13 13:04:42,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:04:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-13 13:04:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 13:04:42,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:42,759 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 13:04:42,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:04:42,759 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:42,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-10-13 13:04:42,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:42,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139603663] [2020-10-13 13:04:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:04:42,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 13:04:42,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:04:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:04:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:42,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:42,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:42,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:42,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:04:42,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:04:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:42,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:04:42,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:42,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:42,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:43,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:04:43,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:43,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:43,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:04:43,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:43,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:04:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:04:43,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139603663] [2020-10-13 13:04:43,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:43,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 13:04:43,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511156178] [2020-10-13 13:04:43,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:04:43,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:43,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:04:43,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:04:43,135 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states. [2020-10-13 13:04:43,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:43,216 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-13 13:04:43,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:04:43,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-13 13:04:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:43,218 INFO L225 Difference]: With dead ends: 31 [2020-10-13 13:04:43,218 INFO L226 Difference]: Without dead ends: 27 [2020-10-13 13:04:43,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:04:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-13 13:04:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-13 13:04:43,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-13 13:04:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-13 13:04:43,227 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-13 13:04:43,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:43,227 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-13 13:04:43,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:04:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-13 13:04:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 13:04:43,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:43,229 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 13:04:43,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:04:43,230 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:43,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-10-13 13:04:43,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:43,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958174589] [2020-10-13 13:04:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 13:04:43,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 13:04:43,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:04:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:43,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:04:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:43,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:43,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:43,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 13:04:43,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:04:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 13:04:43,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:43,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:04:43,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:43,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:43,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:04:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:43,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:04:43,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:43,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:43,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:43,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:43,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:04:43,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-13 13:04:43,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958174589] [2020-10-13 13:04:43,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:43,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:04:43,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876428326] [2020-10-13 13:04:43,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:04:43,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:43,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:04:43,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:04:43,747 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-10-13 13:04:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:43,838 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-13 13:04:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:04:43,839 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-10-13 13:04:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:43,840 INFO L225 Difference]: With dead ends: 34 [2020-10-13 13:04:43,840 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 13:04:43,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:04:43,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 13:04:43,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-13 13:04:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 13:04:43,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-13 13:04:43,848 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-13 13:04:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:43,849 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-13 13:04:43,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:04:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-13 13:04:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 13:04:43,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:43,850 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 13:04:43,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:04:43,851 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:43,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:43,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-10-13 13:04:43,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:43,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894635909] [2020-10-13 13:04:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 13:04:44,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:04:44,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 13:04:44,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:44,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:44,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:44,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:44,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:44,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 13:04:44,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 13:04:44,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:44,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:04:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 13:04:44,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:44,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:44,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 13:04:44,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:44,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 13:04:44,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:44,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:04:44,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:44,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:04:44,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:44,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-13 13:04:44,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894635909] [2020-10-13 13:04:44,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:44,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:04:44,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607436126] [2020-10-13 13:04:44,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:04:44,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:44,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:04:44,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:04:44,565 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 12 states. [2020-10-13 13:04:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:44,659 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-13 13:04:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 13:04:44,660 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-13 13:04:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:44,661 INFO L225 Difference]: With dead ends: 37 [2020-10-13 13:04:44,661 INFO L226 Difference]: Without dead ends: 33 [2020-10-13 13:04:44,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:04:44,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-13 13:04:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-13 13:04:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 13:04:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-13 13:04:44,668 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-13 13:04:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:44,669 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-13 13:04:44,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:04:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-13 13:04:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 13:04:44,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:44,671 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 13:04:44,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:04:44,671 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:44,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-10-13 13:04:44,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:44,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344280666] [2020-10-13 13:04:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 13:04:44,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-13 13:04:44,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:04:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 13:04:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:44,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:44,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:44,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:44,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:44,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:44,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:44,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:44,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:44,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:44,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:45,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 13:04:45,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:04:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:04:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 13:04:45,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:45,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:45,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 13:04:45,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:45,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 13:04:45,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:45,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:04:45,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:45,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:04:45,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:45,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:45,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:45,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:45,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:04:45,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 13:04:45,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344280666] [2020-10-13 13:04:45,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:45,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 13:04:45,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513324954] [2020-10-13 13:04:45,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:04:45,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:45,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:04:45,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:04:45,583 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 13 states. [2020-10-13 13:04:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:45,697 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-13 13:04:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:04:45,698 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2020-10-13 13:04:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:45,699 INFO L225 Difference]: With dead ends: 40 [2020-10-13 13:04:45,699 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 13:04:45,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:04:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 13:04:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-13 13:04:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 13:04:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-13 13:04:45,706 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-13 13:04:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:45,707 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-13 13:04:45,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:04:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-13 13:04:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 13:04:45,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:45,708 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 13:04:45,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:04:45,709 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:45,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-10-13 13:04:45,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:45,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608451154] [2020-10-13 13:04:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:45,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 13:04:46,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-13 13:04:46,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 13:04:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:46,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:04:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:46,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:46,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 13:04:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:04:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:46,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 13:04:46,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:46,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:46,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 13:04:46,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:46,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:46,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:46,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 13:04:46,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:46,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:46,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:46,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:46,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 13:04:46,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:47,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:47,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:47,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:04:47,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:47,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:47,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:47,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:04:47,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:47,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:04:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-13 13:04:47,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608451154] [2020-10-13 13:04:47,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:47,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 13:04:47,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271319993] [2020-10-13 13:04:47,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:04:47,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:47,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:04:47,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:04:47,166 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states. [2020-10-13 13:04:47,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:47,288 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-13 13:04:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:04:47,289 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-13 13:04:47,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:47,290 INFO L225 Difference]: With dead ends: 43 [2020-10-13 13:04:47,291 INFO L226 Difference]: Without dead ends: 39 [2020-10-13 13:04:47,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:04:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-13 13:04:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-13 13:04:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 13:04:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-13 13:04:47,297 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-13 13:04:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:47,298 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-13 13:04:47,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:04:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-13 13:04:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 13:04:47,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:47,300 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 13:04:47,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:04:47,300 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:47,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-10-13 13:04:47,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:47,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060652959] [2020-10-13 13:04:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 13:04:47,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-13 13:04:47,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:04:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:04:47,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:47,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:47,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:47,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:47,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:04:47,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-13 13:04:47,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:04:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:04:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:47,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:48,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-13 13:04:48,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:04:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:04:48,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:48,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 13:04:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:48,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 13:04:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:48,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 13:04:48,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:48,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:48,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:04:48,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:48,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:48,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 13:04:48,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:48,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:04:48,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:48,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:48,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:48,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:48,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:04:48,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-13 13:04:48,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060652959] [2020-10-13 13:04:48,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:48,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:04:48,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597822826] [2020-10-13 13:04:48,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:04:48,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:48,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:04:48,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:04:48,959 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 14 states. [2020-10-13 13:04:49,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:49,110 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-13 13:04:49,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:04:49,111 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-13 13:04:49,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:49,114 INFO L225 Difference]: With dead ends: 46 [2020-10-13 13:04:49,114 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 13:04:49,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:04:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 13:04:49,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-13 13:04:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 13:04:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-13 13:04:49,125 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-13 13:04:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:49,126 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-13 13:04:49,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:04:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-13 13:04:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:04:49,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:49,127 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 13:04:49,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:04:49,127 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:49,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-10-13 13:04:49,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:49,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663202541] [2020-10-13 13:04:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:49,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:49,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 13:04:49,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-13 13:04:49,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:04:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:49,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:04:49,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:49,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:49,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:49,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:49,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:49,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:49,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:49,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:04:49,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:04:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:49,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:04:49,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:49,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-13 13:04:49,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:04:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:04:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:49,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:50,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 13:04:50,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:04:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:04:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:50,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:50,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 13:04:50,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:50,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:50,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 13:04:50,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:50,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:50,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 13:04:50,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:50,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:50,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:50,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:04:50,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:50,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:04:50,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:50,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:50,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:50,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:04:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:50,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:50,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:50,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:50,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:04:50,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:50,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 11 proven. 162 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-13 13:04:50,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663202541] [2020-10-13 13:04:50,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:50,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:04:50,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206068350] [2020-10-13 13:04:50,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:04:50,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:50,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:04:50,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:04:50,817 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 16 states. [2020-10-13 13:04:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:50,983 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-13 13:04:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:04:50,983 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 67 [2020-10-13 13:04:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:50,985 INFO L225 Difference]: With dead ends: 49 [2020-10-13 13:04:50,985 INFO L226 Difference]: Without dead ends: 45 [2020-10-13 13:04:50,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=421, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:04:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-13 13:04:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-13 13:04:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 13:04:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-13 13:04:50,991 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-13 13:04:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:50,992 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-13 13:04:50,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:04:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-13 13:04:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 13:04:50,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:50,993 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 13:04:50,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:04:50,994 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:50,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:50,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-10-13 13:04:50,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:50,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789915445] [2020-10-13 13:04:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:51,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:51,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:51,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:04:51,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 13:04:51,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 13:04:51,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:51,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:04:51,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:51,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:51,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:51,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:51,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:51,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:51,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:51,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:51,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:51,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:51,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:04:51,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 13:04:51,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 13:04:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:51,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:04:51,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:51,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:51,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:51,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:04:51,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 13:04:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:04:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:04:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:51,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:04:52,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-13 13:04:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:04:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:04:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:52,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:52,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 13:04:52,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:04:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:04:52,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 13:04:52,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:52,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-13 13:04:52,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:04:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:52,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:52,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 13:04:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:52,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:04:52,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:52,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:52,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:04:52,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:52,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:52,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:52,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:52,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:52,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:52,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:04:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:52,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:52,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 18 proven. 177 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 13:04:52,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789915445] [2020-10-13 13:04:52,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:52,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:04:52,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637319545] [2020-10-13 13:04:52,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:04:52,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:52,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:04:52,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:04:52,971 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-10-13 13:04:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:53,131 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-13 13:04:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:04:53,132 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-10-13 13:04:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:53,133 INFO L225 Difference]: With dead ends: 52 [2020-10-13 13:04:53,133 INFO L226 Difference]: Without dead ends: 48 [2020-10-13 13:04:53,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:04:53,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-13 13:04:53,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-13 13:04:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 13:04:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-13 13:04:53,140 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-13 13:04:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:53,140 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-13 13:04:53,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:04:53,140 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-13 13:04:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 13:04:53,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:53,142 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 13:04:53,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:04:53,142 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:53,142 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-10-13 13:04:53,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:53,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756825003] [2020-10-13 13:04:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:53,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:53,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:04:53,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-13 13:04:53,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 13:04:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:04:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:53,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:53,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:53,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:04:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:53,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:53,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:53,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:04:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-13 13:04:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 13:04:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 13:04:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:53,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:54,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:04:54,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 13:04:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:04:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:04:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:54,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:54,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:54,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:04:54,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:04:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:54,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:04:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 13:04:54,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:04:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:54,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:04:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:54,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:54,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:54,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:54,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-13 13:04:54,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:04:54,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:04:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 13:04:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:55,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:04:55,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:55,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:55,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 13:04:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:55,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:55,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 13:04:55,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:04:55,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:55,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:55,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:04:55,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:55,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:55,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:55,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:04:55,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:55,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 17 proven. 231 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 13:04:55,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756825003] [2020-10-13 13:04:55,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:55,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 13:04:55,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440889151] [2020-10-13 13:04:55,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:04:55,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:55,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:04:55,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:04:55,498 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 18 states. [2020-10-13 13:04:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:55,748 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-13 13:04:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:04:55,749 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 79 [2020-10-13 13:04:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:55,750 INFO L225 Difference]: With dead ends: 55 [2020-10-13 13:04:55,750 INFO L226 Difference]: Without dead ends: 51 [2020-10-13 13:04:55,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=562, Unknown=0, NotChecked=0, Total=870 [2020-10-13 13:04:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-13 13:04:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-13 13:04:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 13:04:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-13 13:04:55,756 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-13 13:04:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:55,757 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-13 13:04:55,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:04:55,757 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-13 13:04:55,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:04:55,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:55,759 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 13:04:55,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:04:55,759 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:55,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:55,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-10-13 13:04:55,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:55,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105906525] [2020-10-13 13:04:55,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:55,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:56,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 13:04:56,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-13 13:04:56,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 13:04:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 13:04:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:56,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:56,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:56,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:56,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:56,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:56,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:56,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:04:56,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:56,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-13 13:04:56,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 13:04:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 13:04:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:56,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:56,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:56,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:04:56,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:56,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 13:04:56,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:04:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:56,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:04:56,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:56,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:57,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:57,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:04:57,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:57,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 13:04:57,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:57,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:04:57,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:57,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:04:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:57,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:57,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:57,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:04:57,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-13 13:04:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:04:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:04:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:57,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:57,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:57,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:04:57,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-13 13:04:57,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:04:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:04:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:57,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:57,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:04:57,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 13:04:57,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:04:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:57,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:04:57,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:57,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:57,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:57,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:57,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:04:57,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:57,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-13 13:04:57,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:04:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:04:57,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:57,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:57,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:04:58,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 13:04:58,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:04:58,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:04:58,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:58,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:04:58,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 13:04:58,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:04:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:04:58,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:04:58,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:04:58,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:04:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:04:58,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:58,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:04:58,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:04:58,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:04:58,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:58,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:04:58,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:04:58,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:04:58,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:04:58,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:58,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:58,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:58,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:58,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:04:58,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:04:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 22 proven. 272 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-13 13:04:58,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105906525] [2020-10-13 13:04:58,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:58,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 13:04:58,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209381078] [2020-10-13 13:04:58,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:04:58,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:58,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:04:58,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:04:58,493 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-10-13 13:04:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:58,720 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-13 13:04:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:04:58,721 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-13 13:04:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:58,722 INFO L225 Difference]: With dead ends: 58 [2020-10-13 13:04:58,722 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 13:04:58,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-10-13 13:04:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 13:04:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-13 13:04:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 13:04:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-13 13:04:58,728 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-13 13:04:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:58,729 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-13 13:04:58,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:04:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-13 13:04:58,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 13:04:58,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:04:58,730 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 13:04:58,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:04:58,731 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:04:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:04:58,731 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-10-13 13:04:58,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:04:58,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337595913] [2020-10-13 13:04:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:04:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:58,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:59,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:59,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 13:04:59,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-13 13:04:59,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 13:04:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:04:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:04:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:04:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:59,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:59,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:04:59,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:59,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:04:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:59,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:04:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:59,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:59,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:04:59,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-13 13:04:59,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 13:04:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 13:04:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:59,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:04:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:59,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-13 13:05:00,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:05:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:00,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:00,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:00,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-13 13:05:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:05:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:00,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:00,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:00,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 13:05:00,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:00,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:05:00,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:00,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:00,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:05:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:00,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:00,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:05:01,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:01,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:01,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 13:05:01,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:05:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:01,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:01,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 13:05:01,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:05:01,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:01,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:01,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:05:01,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:05:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:01,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 13:05:01,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:05:01,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:01,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:01,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 13:05:01,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:01,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:05:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:01,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:01,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:05:01,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:05:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:01,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:05:01,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:05:01,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:01,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:01,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:01,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:05:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:05:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 28 proven. 322 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-10-13 13:05:01,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337595913] [2020-10-13 13:05:01,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:01,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 13:05:01,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211607383] [2020-10-13 13:05:01,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:05:01,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:01,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:05:01,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:05:01,846 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states. [2020-10-13 13:05:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:02,056 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-13 13:05:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:05:02,057 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-13 13:05:02,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:02,058 INFO L225 Difference]: With dead ends: 61 [2020-10-13 13:05:02,058 INFO L226 Difference]: Without dead ends: 57 [2020-10-13 13:05:02,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:05:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-13 13:05:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-13 13:05:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 13:05:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-13 13:05:02,065 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-13 13:05:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:02,065 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-13 13:05:02,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:05:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-13 13:05:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 13:05:02,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:02,066 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 13:05:02,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:05:02,067 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:02,067 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-10-13 13:05:02,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:02,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744637816] [2020-10-13 13:05:02,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:02,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:02,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 13:05:02,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:02,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-13 13:05:02,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 13:05:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:05:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:05:02,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:02,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:02,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:02,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:02,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:02,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:05:02,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:02,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:02,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:03,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:05:03,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 13:05:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 13:05:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:05:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 13:05:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:03,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:03,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:05:03,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-13 13:05:03,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:03,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:05:03,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:03,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:05:03,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:03,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:03,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:03,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:03,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-13 13:05:03,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:03,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:05:03,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:03,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:04,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:04,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:04,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-13 13:05:04,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:05:04,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:04,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:04,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:04,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:05:04,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:04,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:04,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-13 13:05:04,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:05:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:04,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:04,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:04,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:04,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-13 13:05:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:05:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:04,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 13:05:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:05:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:05,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 13:05:05,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:05:05,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:05,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:05:05,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:05:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:05:05,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:05:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:05,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:05:05,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:05:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:05,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:05:05,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:05:05,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:05,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:05:05,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:05:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:05,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:05,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:05,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:05:05,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:05:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 58 proven. 346 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-10-13 13:05:05,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744637816] [2020-10-13 13:05:05,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:05,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 13:05:05,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230174117] [2020-10-13 13:05:05,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:05:05,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:05,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:05:05,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:05:05,627 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 21 states. [2020-10-13 13:05:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:05,834 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-13 13:05:05,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:05:05,835 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2020-10-13 13:05:05,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:05,836 INFO L225 Difference]: With dead ends: 64 [2020-10-13 13:05:05,836 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 13:05:05,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 13:05:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 13:05:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-13 13:05:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 13:05:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-13 13:05:05,847 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-13 13:05:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:05,847 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-13 13:05:05,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 13:05:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-13 13:05:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 13:05:05,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:05,849 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 13:05:05,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:05:05,849 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:05,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:05,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-10-13 13:05:05,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:05,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98149873] [2020-10-13 13:05:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:06,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:05:06,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 13:05:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:05:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:06,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:06,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:06,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:06,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:06,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:06,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:06,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:05:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-13 13:05:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:05:06,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:05:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:06,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:07,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:07,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:05:07,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-13 13:05:07,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:05:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 13:05:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:07,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:07,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:05:07,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-13 13:05:07,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:05:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:08,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:05:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:08,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:08,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-13 13:05:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:05:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:08,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:08,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:08,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:08,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 13:05:08,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:05:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:08,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:08,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:08,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:08,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:08,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:05:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:09,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 13:05:09,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:05:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:09,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:05:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:05:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:09,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:05:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:09,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:05:09,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:05:09,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:09,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:05:09,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:09,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:05:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:09,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:09,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:05:09,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:05:09,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:09,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:09,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:05:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:05:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:09,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:09,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:09,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:09,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:09,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:05:09,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:09,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:05:09,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:05:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:10,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:10,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:10,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:10,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:10,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:05:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:05:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:10,187 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 13:05:10,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98149873] [2020-10-13 13:05:10,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:10,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-13 13:05:10,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903897624] [2020-10-13 13:05:10,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-13 13:05:10,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:10,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-13 13:05:10,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:05:10,190 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-10-13 13:05:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:10,730 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-13 13:05:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-13 13:05:10,731 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-10-13 13:05:10,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:10,732 INFO L225 Difference]: With dead ends: 67 [2020-10-13 13:05:10,732 INFO L226 Difference]: Without dead ends: 63 [2020-10-13 13:05:10,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 13:05:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-13 13:05:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-13 13:05:10,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-13 13:05:10,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-13 13:05:10,738 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-13 13:05:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:10,739 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-13 13:05:10,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-13 13:05:10,739 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-13 13:05:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 13:05:10,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:05:10,740 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 13:05:10,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:05:10,741 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:05:10,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:05:10,741 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-10-13 13:05:10,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:05:10,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673183219] [2020-10-13 13:05:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:05:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:10,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:11,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:11,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 13:05:11,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-13 13:05:11,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:05:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:05:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 13:05:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:11,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:05:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:11,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:05:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:05:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:11,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:05:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:11,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:12,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:12,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:05:12,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-10-13 13:05:12,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:05:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:05:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 13:05:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:13,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:13,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:05:13,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-10-13 13:05:13,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:05:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:05:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:13,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:13,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:05:13,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:13,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:14,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:05:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-13 13:05:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:14,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:05:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:14,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:14,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:14,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:05:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:14,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:05:14,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:05:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:05:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 13:05:15,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:05:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:05:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:05:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:05:15,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:05:15,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 13:05:15,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:05:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:05:15,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:05:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:05:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:05:15,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 13:05:15,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:05:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:05:15,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:05:15,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:05:15,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:05:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:05:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:05:15,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:05:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:05:15,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:05:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:05:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:05:15,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:05:15,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:05:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:05:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:05:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:05:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:05:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:05:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:05:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:05:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:05:15,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:05:15,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:05:15,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:05:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:05:15,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:05:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:05:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:05:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:05:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:05:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 246 proven. 276 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-10-13 13:05:15,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673183219] [2020-10-13 13:05:15,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:05:15,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 13:05:15,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309712407] [2020-10-13 13:05:15,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:05:15,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:05:15,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:05:16,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:05:16,000 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 22 states. [2020-10-13 13:05:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:05:17,332 INFO L93 Difference]: Finished difference Result 151 states and 390 transitions. [2020-10-13 13:05:17,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 13:05:17,334 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 109 [2020-10-13 13:05:17,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:05:17,335 INFO L225 Difference]: With dead ends: 151 [2020-10-13 13:05:17,335 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 13:05:17,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=590, Invalid=1480, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 13:05:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 13:05:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 13:05:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 13:05:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 13:05:17,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2020-10-13 13:05:17,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:05:17,340 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 13:05:17,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:05:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 13:05:17,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 13:05:17,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:05:17,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 13:05:17,474 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-13 13:05:17,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 13:05:17,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 13:05:17,474 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 13:05:17,475 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 13:05:17,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 13:05:17,475 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-13 13:05:17,475 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-10-13 13:05:17,475 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-10-13 13:05:17,475 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-13 13:05:17,476 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-10-13 13:05:17,476 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= 15 main_~input~0) [2020-10-13 13:05:17,476 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-10-13 13:05:17,476 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-10-13 13:05:17,476 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-10-13 13:05:17,476 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-10-13 13:05:17,477 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-10-13 13:05:17,477 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (or (and (<= 1 |id_#in~x|) (<= id_~x |id_#in~x|) (<= |id_#in~x| id_~x)) (not (<= 0 |id_#in~x|))) [2020-10-13 13:05:17,477 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-13 13:05:17,477 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-13 13:05:17,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:05:17 BoogieIcfgContainer [2020-10-13 13:05:17,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 13:05:17,486 INFO L168 Benchmark]: Toolchain (without parser) took 36851.22 ms. Allocated memory was 148.4 MB in the beginning and 725.1 MB in the end (delta: 576.7 MB). Free memory was 104.3 MB in the beginning and 92.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 588.3 MB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,486 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.14 ms. Allocated memory is still 148.4 MB. Free memory was 103.9 MB in the beginning and 94.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,488 INFO L168 Benchmark]: Boogie Preprocessor took 22.67 ms. Allocated memory is still 148.4 MB. Free memory was 94.8 MB in the beginning and 93.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,488 INFO L168 Benchmark]: RCFGBuilder took 307.26 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 93.4 MB in the beginning and 173.0 MB in the end (delta: -79.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,489 INFO L168 Benchmark]: TraceAbstraction took 36306.43 ms. Allocated memory was 205.0 MB in the beginning and 725.1 MB in the end (delta: 520.1 MB). Free memory was 173.0 MB in the beginning and 92.7 MB in the end (delta: 80.3 MB). Peak memory consumption was 600.3 MB. Max. memory is 7.1 GB. [2020-10-13 13:05:17,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 210.14 ms. Allocated memory is still 148.4 MB. Free memory was 103.9 MB in the beginning and 94.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.67 ms. Allocated memory is still 148.4 MB. Free memory was 94.8 MB in the beginning and 93.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 307.26 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 93.4 MB in the beginning and 173.0 MB in the end (delta: -79.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36306.43 ms. Allocated memory was 205.0 MB in the beginning and 725.1 MB in the end (delta: 520.1 MB). Free memory was 173.0 MB in the beginning and 92.7 MB in the end (delta: 80.3 MB). Peak memory consumption was 600.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.1s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 557 SDslu, 2325 SDs, 0 SdLazy, 2176 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 329 SyntacticMatches, 9 SemanticMatches, 366 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=16, 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, 17 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 37 PreInvPairs, 37 NumberOfFragments, 23 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 278 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 1037 NumberOfCodeBlocks, 1037 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1020 ConstructedInterpolants, 0 QuantifiedInterpolants, 223248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2093/4624 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...