/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:21:41,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:21:41,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:21:41,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:21:41,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:21:41,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:21:41,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:21:41,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:21:41,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:21:41,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:21:41,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:21:41,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:21:41,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:21:41,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:21:41,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:21:41,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:21:41,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:21:41,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:21:41,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:21:41,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:21:41,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:21:41,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:21:41,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:21:41,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:21:41,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:21:41,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:21:41,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:21:41,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:21:41,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:21:41,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:21:41,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:21:41,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:21:41,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:21:41,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:21:41,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:21:41,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:21:41,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:21:41,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:21:41,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:21:41,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:21:41,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:21:41,434 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 [2020-09-21 11:21:41,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:21:41,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:21:41,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:21:41,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:21:41,488 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:21:41,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:21:41,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:21:41,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:21:41,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:21:41,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:21:41,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:21:41,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:21:41,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:21:41,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:21:41,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:21:41,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:21:41,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:21:41,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:21:41,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:21:41,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:21:41,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:21:41,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:21:41,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:21:41,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:21:41,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:21:41,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:21:41,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:21:41,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:21:41,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:21:41,495 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:21:41,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:21:42,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:21:42,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:21:42,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:21:42,013 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:21:42,014 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-09-21 11:21:42,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915155803/865a265aa1564d30914c6e0e4eb54be3/FLAG263911fe5 [2020-09-21 11:21:42,663 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:21:42,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-09-21 11:21:42,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915155803/865a265aa1564d30914c6e0e4eb54be3/FLAG263911fe5 [2020-09-21 11:21:43,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915155803/865a265aa1564d30914c6e0e4eb54be3 [2020-09-21 11:21:43,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:21:43,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:21:43,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:21:43,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:21:43,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:21:43,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef6092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43, skipping insertion in model container [2020-09-21 11:21:43,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:21:43,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:21:43,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:21:43,290 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:21:43,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:21:43,321 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:21:43,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43 WrapperNode [2020-09-21 11:21:43,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:21:43,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:21:43,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:21:43,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:21:43,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (1/1) ... [2020-09-21 11:21:43,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:21:43,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:21:43,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:21:43,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:21:43,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (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 [2020-09-21 11:21:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:21:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:21:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-21 11:21:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:21:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:21:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-21 11:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:21:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:21:43,698 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:21:43,699 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:21:43,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:21:43 BoogieIcfgContainer [2020-09-21 11:21:43,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:21:43,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:21:43,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:21:43,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:21:43,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:21:43" (1/3) ... [2020-09-21 11:21:43,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d9e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:21:43, skipping insertion in model container [2020-09-21 11:21:43,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:43" (2/3) ... [2020-09-21 11:21:43,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d9e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:21:43, skipping insertion in model container [2020-09-21 11:21:43,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:21:43" (3/3) ... [2020-09-21 11:21:43,714 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i20_o20-2.c [2020-09-21 11:21:43,727 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:21:43,737 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:21:43,759 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:21:43,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:21:43,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:21:43,790 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:21:43,790 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:21:43,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:21:43,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:21:43,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:21:43,791 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:21:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-09-21 11:21:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:21:43,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:43,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:43,823 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-09-21 11:21:43,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:43,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675960112] [2020-09-21 11:21:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:43,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:43,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:43,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:43,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:43,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:21:43,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:43,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:21:43,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:21:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:21:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:44,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:44,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:44,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:44,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:44,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:21:44,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:21:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:21:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:21:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:21:44,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675960112] [2020-09-21 11:21:44,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:21:44,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:21:44,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257382170] [2020-09-21 11:21:44,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:21:44,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:44,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:21:44,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:21:44,227 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-09-21 11:21:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:44,330 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-09-21 11:21:44,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:21:44,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:21:44,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:44,346 INFO L225 Difference]: With dead ends: 30 [2020-09-21 11:21:44,346 INFO L226 Difference]: Without dead ends: 18 [2020-09-21 11:21:44,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:21:44,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-21 11:21:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-21 11:21:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-21 11:21:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-09-21 11:21:44,400 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-09-21 11:21:44,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:44,401 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-09-21 11:21:44,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:21:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-09-21 11:21:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 11:21:44,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:44,404 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:44,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:21:44,404 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-09-21 11:21:44,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:44,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949248676] [2020-09-21 11:21:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:21:44,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:21:44,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:21:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:21:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:44,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:21:44,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:44,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:21:44,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:21:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:21:44,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:44,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:21:44,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:44,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:21:44,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949248676] [2020-09-21 11:21:44,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:44,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:21:44,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514410441] [2020-09-21 11:21:44,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:21:44,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:44,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:21:44,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:21:44,666 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-09-21 11:21:44,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:44,755 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-09-21 11:21:44,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:21:44,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-21 11:21:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:44,757 INFO L225 Difference]: With dead ends: 25 [2020-09-21 11:21:44,757 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 11:21:44,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:21:44,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 11:21:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-09-21 11:21:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 11:21:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-09-21 11:21:44,767 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-09-21 11:21:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:44,767 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-09-21 11:21:44,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:21:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-09-21 11:21:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 11:21:44,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:44,769 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:44,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:21:44,770 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:44,770 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-09-21 11:21:44,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:44,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442791471] [2020-09-21 11:21:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:21:44,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:21:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:21:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:21:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:44,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:21:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:44,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:21:44,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:21:44,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:44,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:21:44,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:44,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:44,993 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:44,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:44,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:44,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:44,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:44,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:44,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:44,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:44,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:45,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:45,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:45,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:21:45,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442791471] [2020-09-21 11:21:45,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:45,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:21:45,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077572039] [2020-09-21 11:21:45,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:21:45,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:45,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:21:45,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:21:45,085 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-09-21 11:21:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:45,160 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-09-21 11:21:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:21:45,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-21 11:21:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:45,162 INFO L225 Difference]: With dead ends: 28 [2020-09-21 11:21:45,162 INFO L226 Difference]: Without dead ends: 24 [2020-09-21 11:21:45,163 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 [2020-09-21 11:21:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-21 11:21:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-09-21 11:21:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-21 11:21:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-09-21 11:21:45,171 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-09-21 11:21:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:45,171 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-09-21 11:21:45,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:21:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-09-21 11:21:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-21 11:21:45,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:45,173 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:45,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:21:45,173 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:45,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-09-21 11:21:45,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:45,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089377881] [2020-09-21 11:21:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:21:45,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:21:45,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:21:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:21:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:45,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:45,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:45,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:45,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:21:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:21:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:21:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:45,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:45,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:45,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:45,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:45,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:45,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:45,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:45,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-21 11:21:45,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089377881] [2020-09-21 11:21:45,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:45,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:21:45,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589699176] [2020-09-21 11:21:45,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:21:45,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:45,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:21:45,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:21:45,504 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2020-09-21 11:21:45,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:45,587 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-21 11:21:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:21:45,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-09-21 11:21:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:45,590 INFO L225 Difference]: With dead ends: 31 [2020-09-21 11:21:45,590 INFO L226 Difference]: Without dead ends: 27 [2020-09-21 11:21:45,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:21:45,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-21 11:21:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-21 11:21:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-21 11:21:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-09-21 11:21:45,599 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-09-21 11:21:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:45,599 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-09-21 11:21:45,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:21:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-09-21 11:21:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 11:21:45,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:45,601 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:45,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:21:45,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:45,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-09-21 11:21:45,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:45,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935151454] [2020-09-21 11:21:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-21 11:21:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:21:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:21:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:45,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:45,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:21:45,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:21:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 11:21:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:45,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:45,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:45,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:21:45,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:45,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:45,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:45,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:45,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:45,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:45,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:45,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:45,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:45,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:45,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:45,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:45,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:45,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:45,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:45,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 11:21:45,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935151454] [2020-09-21 11:21:45,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:45,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:21:45,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329778768] [2020-09-21 11:21:45,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:21:45,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:45,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:21:45,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:21:45,949 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-09-21 11:21:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:46,050 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-21 11:21:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:21:46,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-21 11:21:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:46,052 INFO L225 Difference]: With dead ends: 34 [2020-09-21 11:21:46,052 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 11:21:46,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:21:46,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 11:21:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-21 11:21:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 11:21:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-21 11:21:46,061 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-09-21 11:21:46,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:46,062 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-21 11:21:46,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:21:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-21 11:21:46,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-21 11:21:46,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:46,064 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:46,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:21:46,064 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:46,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-09-21 11:21:46,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:46,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171141390] [2020-09-21 11:21:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:21:46,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:21:46,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:21:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:46,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:46,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:46,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,195 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:46,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:21:46,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:21:46,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 11:21:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:46,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:21:46,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:46,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:46,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:46,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,354 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:21:46,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:46,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:46,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:46,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-21 11:21:46,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171141390] [2020-09-21 11:21:46,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:46,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:21:46,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168034148] [2020-09-21 11:21:46,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:21:46,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:46,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:21:46,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:21:46,454 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-21 11:21:46,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:46,568 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-21 11:21:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:21:46,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-09-21 11:21:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:46,570 INFO L225 Difference]: With dead ends: 37 [2020-09-21 11:21:46,570 INFO L226 Difference]: Without dead ends: 33 [2020-09-21 11:21:46,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:21:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-21 11:21:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-21 11:21:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 11:21:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-21 11:21:46,578 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-09-21 11:21:46,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:46,578 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-21 11:21:46,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:21:46,579 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-21 11:21:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-21 11:21:46,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:46,580 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:46,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:21:46,581 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:46,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-09-21 11:21:46,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:46,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880160301] [2020-09-21 11:21:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-21 11:21:46,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:21:46,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:21:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:21:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:46,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:46,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,715 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:46,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:21:46,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:21:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:21:46,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:46,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:21:46,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:46,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:46,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:21:46,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:46,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:46,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:46,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:46,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:46,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:21:46,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:46,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:46,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:46,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:46,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:46,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:46,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:46,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:46,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:46,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:47,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:47,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 10 proven. 58 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-21 11:21:47,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880160301] [2020-09-21 11:21:47,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:47,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:21:47,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574224292] [2020-09-21 11:21:47,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:21:47,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:47,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:21:47,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:21:47,075 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-09-21 11:21:47,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:47,201 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-09-21 11:21:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:21:47,202 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-09-21 11:21:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:47,204 INFO L225 Difference]: With dead ends: 40 [2020-09-21 11:21:47,204 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 11:21:47,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:21:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 11:21:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-21 11:21:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 11:21:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-21 11:21:47,212 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-09-21 11:21:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:47,212 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-21 11:21:47,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:21:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-21 11:21:47,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-21 11:21:47,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:47,214 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:47,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:21:47,215 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:47,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:47,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-09-21 11:21:47,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:47,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730637090] [2020-09-21 11:21:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:21:47,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:21:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:21:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 11:21:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:47,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:47,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:47,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:21:47,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:21:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:21:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:47,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:21:47,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:47,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:47,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:21:47,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:47,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:21:47,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:47,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:21:47,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:47,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:21:47,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:47,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:47,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:47,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:47,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:47,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:47,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:47,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:47,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:47,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:47,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:47,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:47,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:47,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:47,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:47,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 16 proven. 89 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-21 11:21:47,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730637090] [2020-09-21 11:21:47,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:47,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:21:47,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475757231] [2020-09-21 11:21:47,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:21:47,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:47,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:21:47,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:21:47,801 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states. [2020-09-21 11:21:47,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:47,943 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-21 11:21:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:21:47,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-09-21 11:21:47,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:47,945 INFO L225 Difference]: With dead ends: 43 [2020-09-21 11:21:47,945 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 11:21:47,946 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 [2020-09-21 11:21:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 11:21:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 11:21:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:21:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-09-21 11:21:47,953 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-09-21 11:21:47,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:47,953 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-09-21 11:21:47,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:21:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-09-21 11:21:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:21:47,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:47,955 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:47,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:21:47,956 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:47,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:47,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-09-21 11:21:47,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:47,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499313810] [2020-09-21 11:21:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:21:48,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:21:48,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:21:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 11:21:48,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:48,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:21:48,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:48,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:21:48,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:48,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:21:48,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:48,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:48,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:48,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:21:48,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:48,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:48,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:48,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:48,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:48,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:48,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:48,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:48,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:48,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:48,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:48,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:48,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:21:48,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:48,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:48,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:48,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 24 proven. 113 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-21 11:21:48,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499313810] [2020-09-21 11:21:48,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:48,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:21:48,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881875042] [2020-09-21 11:21:48,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:21:48,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:48,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:21:48,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:21:48,675 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 15 states. [2020-09-21 11:21:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:48,846 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-21 11:21:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:21:48,847 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-09-21 11:21:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:48,848 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:21:48,848 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 11:21:48,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:21:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 11:21:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-21 11:21:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 11:21:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-21 11:21:48,856 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-09-21 11:21:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:48,856 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-21 11:21:48,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:21:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-21 11:21:48,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:21:48,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:48,858 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:48,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:21:48,858 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:48,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-09-21 11:21:48,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:48,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595062595] [2020-09-21 11:21:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:21:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:21:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:48,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:48,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:48,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:49,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 11:21:49,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:21:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:21:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:49,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:21:49,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:21:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:49,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:21:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:49,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:21:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:49,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:21:49,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,518 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:49,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:49,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:21:49,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:49,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:49,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:49,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 40 proven. 131 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-21 11:21:49,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595062595] [2020-09-21 11:21:49,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:49,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:21:49,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351760362] [2020-09-21 11:21:49,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:21:49,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:49,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:21:49,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:21:49,667 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states. [2020-09-21 11:21:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:49,833 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-21 11:21:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:21:49,833 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-09-21 11:21:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:49,834 INFO L225 Difference]: With dead ends: 49 [2020-09-21 11:21:49,835 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:21:49,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:21:49,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:21:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-21 11:21:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 11:21:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-21 11:21:49,850 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-09-21 11:21:49,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:49,850 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-21 11:21:49,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:21:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-21 11:21:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:21:49,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:49,856 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:49,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:21:49,856 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:49,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-09-21 11:21:49,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:49,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750020415] [2020-09-21 11:21:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:21:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:21:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:21:50,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:50,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 11:21:50,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:50,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 11:21:50,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:50,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:50,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:50,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:21:50,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:50,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:21:50,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:50,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:21:50,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:50,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:50,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:50,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:21:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:50,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:21:50,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:50,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:50,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:50,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 32 proven. 168 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-21 11:21:50,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750020415] [2020-09-21 11:21:50,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:50,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 11:21:50,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869730751] [2020-09-21 11:21:50,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:21:50,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:50,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:21:50,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:21:50,921 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-09-21 11:21:51,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:51,108 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-21 11:21:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:21:51,109 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-09-21 11:21:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:51,110 INFO L225 Difference]: With dead ends: 52 [2020-09-21 11:21:51,111 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 11:21:51,113 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 [2020-09-21 11:21:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 11:21:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-21 11:21:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 11:21:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-21 11:21:51,127 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-09-21 11:21:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:51,129 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-21 11:21:51,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:21:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-21 11:21:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:21:51,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:51,131 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:51,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:21:51,132 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:51,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:51,132 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-09-21 11:21:51,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:51,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311285633] [2020-09-21 11:21:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:21:51,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 11:21:51,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:21:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:51,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,287 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,287 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:51,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:21:51,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:21:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-21 11:21:51,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:51,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:21:51,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:21:51,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:51,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:21:51,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:51,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:21:51,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:51,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:21:51,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:51,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:51,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:51,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:21:51,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:51,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,028 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:21:52,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:52,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:52,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:52,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:52,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:52,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:52,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:52,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:52,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:52,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:52,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:52,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:52,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:52,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 18 proven. 220 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-09-21 11:21:52,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311285633] [2020-09-21 11:21:52,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:52,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:21:52,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075468168] [2020-09-21 11:21:52,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:21:52,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:52,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:21:52,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:21:52,335 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-09-21 11:21:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:52,529 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-21 11:21:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:21:52,530 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-09-21 11:21:52,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:52,531 INFO L225 Difference]: With dead ends: 55 [2020-09-21 11:21:52,531 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 11:21:52,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:21:52,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 11:21:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-21 11:21:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 11:21:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-21 11:21:52,539 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-09-21 11:21:52,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:52,540 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-21 11:21:52,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:21:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-21 11:21:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 11:21:52,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:52,541 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:52,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:21:52,542 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-09-21 11:21:52,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:52,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806822134] [2020-09-21 11:21:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:21:52,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:21:52,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:21:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 11:21:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:52,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:52,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:52,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:21:52,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:21:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:21:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:21:52,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:52,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:21:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:21:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:21:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:53,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 11:21:53,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:21:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:21:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:53,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:21:53,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:53,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:21:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-09-21 11:21:53,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:53,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:21:53,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:53,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:53,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:21:53,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:53,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:53,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:21:53,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:53,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:53,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:53,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:53,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:53,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 4 proven. 260 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-21 11:21:53,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806822134] [2020-09-21 11:21:53,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:53,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 11:21:53,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892062112] [2020-09-21 11:21:53,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 11:21:53,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:53,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 11:21:53,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:21:53,824 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-09-21 11:21:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:54,026 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-09-21 11:21:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:21:54,027 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-09-21 11:21:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:54,028 INFO L225 Difference]: With dead ends: 58 [2020-09-21 11:21:54,028 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 11:21:54,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:21:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 11:21:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-21 11:21:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:21:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-21 11:21:54,043 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-09-21 11:21:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:54,044 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-21 11:21:54,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 11:21:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-21 11:21:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-21 11:21:54,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:54,047 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:54,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:21:54,048 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:54,048 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-09-21 11:21:54,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:54,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929761076] [2020-09-21 11:21:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 11:21:54,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:54,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:54,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:54,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:21:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:21:54,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:21:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:54,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:21:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:21:54,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-21 11:21:54,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:21:54,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:21:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:54,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-21 11:21:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:21:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:21:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:54,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 11:21:54,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:21:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:54,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-21 11:21:54,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:55,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:21:55,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:55,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:55,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:55,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:21:55,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:21:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:55,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:55,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:55,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,281 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:55,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:55,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:55,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:55,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:21:55,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:55,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:55,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,364 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:55,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:55,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:55,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:55,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:55,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:55,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 28 proven. 325 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-09-21 11:21:55,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929761076] [2020-09-21 11:21:55,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:55,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-21 11:21:55,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387278787] [2020-09-21 11:21:55,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-21 11:21:55,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:55,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-21 11:21:55,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:21:55,502 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 20 states. [2020-09-21 11:21:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:55,802 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-21 11:21:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:21:55,803 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 91 [2020-09-21 11:21:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:55,805 INFO L225 Difference]: With dead ends: 61 [2020-09-21 11:21:55,805 INFO L226 Difference]: Without dead ends: 57 [2020-09-21 11:21:55,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2020-09-21 11:21:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-21 11:21:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-09-21 11:21:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 11:21:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-09-21 11:21:55,817 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-09-21 11:21:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:55,818 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-09-21 11:21:55,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-21 11:21:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-09-21 11:21:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 11:21:55,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:55,824 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:55,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:21:55,825 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:55,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:55,825 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-09-21 11:21:55,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:55,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368608181] [2020-09-21 11:21:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 11:21:55,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-21 11:21:55,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:21:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:21:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,023 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:56,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:21:56,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:56,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:21:56,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 11:21:56,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:21:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-21 11:21:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:21:56,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 11:21:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:21:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:21:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:56,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:21:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:21:56,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:21:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:21:56,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:56,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:21:56,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:21:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:21:56,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:56,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 11:21:56,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:21:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:56,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:21:56,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:56,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:56,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:21:56,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:21:56,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:57,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:57,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:57,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:57,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:21:57,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:57,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:21:57,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:57,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:57,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:57,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:57,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:57,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:57,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:57,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:57,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:57,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 69 proven. 349 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-09-21 11:21:57,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368608181] [2020-09-21 11:21:57,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:57,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:21:57,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106988379] [2020-09-21 11:21:57,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:21:57,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:57,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:21:57,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:21:57,411 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 21 states. [2020-09-21 11:21:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:57,621 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-21 11:21:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:21:57,622 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2020-09-21 11:21:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:57,623 INFO L225 Difference]: With dead ends: 64 [2020-09-21 11:21:57,623 INFO L226 Difference]: Without dead ends: 60 [2020-09-21 11:21:57,624 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 [2020-09-21 11:21:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-21 11:21:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-21 11:21:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-21 11:21:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-21 11:21:57,630 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-09-21 11:21:57,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:57,630 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-21 11:21:57,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:21:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-21 11:21:57,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:21:57,631 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:57,632 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:57,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:21:57,632 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:57,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:57,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-09-21 11:21:57,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:57,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645238444] [2020-09-21 11:21:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:21:57,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 11:21:57,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:21:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:57,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 11:21:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:57,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:57,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:21:57,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-21 11:21:57,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:21:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 11:21:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:21:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:21:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:58,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:21:58,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:21:58,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:21:58,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:21:58,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:21:58,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:21:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:58,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-21 11:21:58,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:21:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:21:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:58,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:21:58,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:21:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:58,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:21:58,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:21:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:58,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:21:58,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:21:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:21:58,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:21:58,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:21:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,099 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:59,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:21:59,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:21:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:21:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:59,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:21:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:21:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:59,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:59,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:59,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:21:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:59,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:21:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 23 proven. 421 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-09-21 11:21:59,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645238444] [2020-09-21 11:21:59,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:59,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:21:59,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602189989] [2020-09-21 11:21:59,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:21:59,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:59,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:21:59,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:21:59,389 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 21 states. [2020-09-21 11:21:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:59,669 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-21 11:21:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:21:59,669 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2020-09-21 11:21:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:59,671 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:21:59,671 INFO L226 Difference]: Without dead ends: 63 [2020-09-21 11:21:59,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:21:59,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-21 11:21:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-21 11:21:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 11:21:59,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-21 11:21:59,678 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-09-21 11:21:59,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:59,679 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-21 11:21:59,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:21:59,679 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-21 11:21:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:21:59,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:59,680 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:59,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:21:59,681 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:59,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:59,681 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-09-21 11:21:59,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:59,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368858114] [2020-09-21 11:21:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:21:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:21:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:59,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:21:59,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:00,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-21 11:22:00,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:22:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 11:22:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:00,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-21 11:22:00,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:00,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:00,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-21 11:22:00,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:00,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 11:22:00,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:00,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:22:00,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:00,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:01,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 11:22:01,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:01,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:01,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:22:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:22:01,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:01,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:01,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:22:01,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:01,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:01,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:01,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:22:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:01,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:01,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:22:01,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:01,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:01,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:01,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:01,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:01,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:01,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:01,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:01,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:01,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:01,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:01,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:01,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:01,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:01,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 43 proven. 508 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2020-09-21 11:22:01,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368858114] [2020-09-21 11:22:01,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:01,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-21 11:22:01,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748240270] [2020-09-21 11:22:01,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-21 11:22:01,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:01,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-21 11:22:01,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=364, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:22:01,932 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 24 states. [2020-09-21 11:22:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:02,271 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-09-21 11:22:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:22:02,272 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2020-09-21 11:22:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:02,273 INFO L225 Difference]: With dead ends: 70 [2020-09-21 11:22:02,273 INFO L226 Difference]: Without dead ends: 66 [2020-09-21 11:22:02,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=579, Invalid=1061, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:22:02,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-21 11:22:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-21 11:22:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-21 11:22:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-21 11:22:02,280 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-09-21 11:22:02,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:02,281 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-21 11:22:02,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-21 11:22:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-21 11:22:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-21 11:22:02,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:02,282 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:02,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:22:02,283 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash -464475409, now seen corresponding path program 17 times [2020-09-21 11:22:02,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:02,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652821270] [2020-09-21 11:22:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:22:02,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:22:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:22:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:22:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:02,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:02,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:02,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:02,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-21 11:22:02,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:22:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:22:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:02,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:02,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-21 11:22:02,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,131 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:03,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-21 11:22:03,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:03,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:03,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-21 11:22:03,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:03,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-21 11:22:03,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:03,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:03,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-21 11:22:03,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 27 [2020-09-21 11:22:03,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,757 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:03,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:22:03,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:03,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:22:03,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:03,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:03,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:22:03,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:22:04,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:04,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:04,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:22:04,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:04,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:22:04,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:04,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,295 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:04,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:04,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:04,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:22:04,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:04,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:04,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:04,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:04,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:04,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,615 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 54 proven. 541 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2020-09-21 11:22:04,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652821270] [2020-09-21 11:22:04,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:04,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:22:04,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085478364] [2020-09-21 11:22:04,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:22:04,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:04,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:22:04,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:22:04,625 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 23 states. [2020-09-21 11:22:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:04,903 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-09-21 11:22:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:22:04,903 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115 [2020-09-21 11:22:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:04,904 INFO L225 Difference]: With dead ends: 73 [2020-09-21 11:22:04,904 INFO L226 Difference]: Without dead ends: 69 [2020-09-21 11:22:04,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:22:04,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-21 11:22:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-21 11:22:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-21 11:22:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-09-21 11:22:04,915 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-09-21 11:22:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:04,916 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-09-21 11:22:04,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:22:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-09-21 11:22:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:22:04,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:04,919 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:04,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:22:04,919 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash 130115453, now seen corresponding path program 18 times [2020-09-21 11:22:04,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:04,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601853305] [2020-09-21 11:22:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:22:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-21 11:22:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:22:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:22:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:05,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-21 11:22:05,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:22:05,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:06,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 11:22:06,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:06,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:06,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:22:06,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:06,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:06,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:06,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:22:06,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:22:06,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:06,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:22:06,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:06,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:07,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:22:07,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:07,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:07,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:07,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:07,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:07,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:07,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:07,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:07,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 120 proven. 525 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-09-21 11:22:07,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601853305] [2020-09-21 11:22:07,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:07,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-21 11:22:07,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380773384] [2020-09-21 11:22:07,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-21 11:22:07,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:07,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-21 11:22:07,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:22:07,275 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2020-09-21 11:22:07,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:07,650 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-21 11:22:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 11:22:07,651 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-09-21 11:22:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:07,652 INFO L225 Difference]: With dead ends: 76 [2020-09-21 11:22:07,652 INFO L226 Difference]: Without dead ends: 72 [2020-09-21 11:22:07,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-09-21 11:22:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-21 11:22:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-21 11:22:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 11:22:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-09-21 11:22:07,658 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-09-21 11:22:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:07,658 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-09-21 11:22:07,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-21 11:22:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-09-21 11:22:07,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:22:07,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:07,660 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:07,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:22:07,660 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:07,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:07,660 INFO L82 PathProgramCache]: Analyzing trace with hash -2010955025, now seen corresponding path program 19 times [2020-09-21 11:22:07,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:07,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533089492] [2020-09-21 11:22:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-21 11:22:07,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:22:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:07,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:07,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:07,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:07,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:07,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:07,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,061 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-21 11:22:08,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:22:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-21 11:22:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:08,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 11:22:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:22:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:22:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:08,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 11:22:08,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:22:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:08,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 11:22:08,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 11:22:08,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-21 11:22:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:09,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:09,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:09,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:09,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:22:09,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:09,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:09,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:09,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:22:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:09,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:22:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:09,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:22:09,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:09,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:09,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:09,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:09,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:09,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:22:09,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:09,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:09,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:09,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,001 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:10,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:10,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:10,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:10,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 104 proven. 637 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-09-21 11:22:10,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533089492] [2020-09-21 11:22:10,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:10,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:22:10,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984889120] [2020-09-21 11:22:10,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:22:10,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:10,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:22:10,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:22:10,164 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states. [2020-09-21 11:22:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:10,543 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-21 11:22:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:22:10,544 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2020-09-21 11:22:10,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:10,545 INFO L225 Difference]: With dead ends: 79 [2020-09-21 11:22:10,545 INFO L226 Difference]: Without dead ends: 75 [2020-09-21 11:22:10,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-09-21 11:22:10,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-21 11:22:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-21 11:22:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 11:22:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-21 11:22:10,551 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-09-21 11:22:10,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:10,552 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-21 11:22:10,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:22:10,552 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-21 11:22:10,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-21 11:22:10,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:10,554 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:10,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:22:10,554 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:10,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:10,554 INFO L82 PathProgramCache]: Analyzing trace with hash -799288067, now seen corresponding path program 20 times [2020-09-21 11:22:10,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:10,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049313204] [2020-09-21 11:22:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:22:10,578 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:22:10,578 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:22:10,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:22:10,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:22:10 BoogieIcfgContainer [2020-09-21 11:22:10,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:22:10,616 INFO L168 Benchmark]: Toolchain (without parser) took 27582.58 ms. Allocated memory was 141.0 MB in the beginning and 628.1 MB in the end (delta: 487.1 MB). Free memory was 104.8 MB in the beginning and 517.2 MB in the end (delta: -412.4 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,617 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.01 ms. Allocated memory is still 141.0 MB. Free memory was 104.2 MB in the beginning and 95.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,618 INFO L168 Benchmark]: Boogie Preprocessor took 31.01 ms. Allocated memory is still 141.0 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,619 INFO L168 Benchmark]: RCFGBuilder took 349.12 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 172.5 MB in the end (delta: -78.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,619 INFO L168 Benchmark]: TraceAbstraction took 26908.65 ms. Allocated memory was 203.9 MB in the beginning and 628.1 MB in the end (delta: 424.1 MB). Free memory was 172.5 MB in the beginning and 517.2 MB in the end (delta: -344.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:10,622 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.01 ms. Allocated memory is still 141.0 MB. Free memory was 104.2 MB in the beginning and 95.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.01 ms. Allocated memory is still 141.0 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 349.12 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 172.5 MB in the end (delta: -78.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26908.65 ms. Allocated memory was 203.9 MB in the beginning and 628.1 MB in the end (delta: 424.1 MB). Free memory was 172.5 MB in the beginning and 517.2 MB in the end (delta: -344.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 20; [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 20 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.7s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 870 SDslu, 1238 SDs, 0 SdLazy, 713 SolverSat, 224 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 484 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, 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, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 308082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3148/7600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...