/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/sum_20x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:22:04,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:22:04,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:22:04,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:22:04,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:22:04,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:22:04,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:22:04,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:22:04,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:22:04,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:22:04,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:22:04,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:22:04,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:22:04,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:22:04,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:22:04,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:22:04,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:22:04,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:22:04,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:22:04,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:22:04,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:22:04,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:22:04,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:22:04,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:22:04,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:22:04,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:22:04,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:22:04,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:22:04,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:22:04,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:22:04,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:22:04,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:22:04,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:22:04,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:22:04,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:22:04,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:22:04,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:22:04,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:22:04,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:22:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:22:04,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:22:04,430 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 11:22:04,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:22:04,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:22:04,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:22:04,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:22:04,497 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:22:04,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:22:04,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:22:04,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:22:04,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:22:04,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:22:04,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:22:04,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:22:04,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:22:04,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:22:04,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:22:04,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:22:04,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:22:04,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:22:04,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:22:04,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:22:04,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:22:04,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:22:04,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:22:04,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:22:04,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:22:04,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:22:04,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:22:04,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:22:04,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:22:04,504 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 11:22:04,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:22:04,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:22:05,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:22:05,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:22:05,003 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:22:05,005 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-09-21 11:22:05,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eede3394/7033dff3ea7f4a40a81cea31b767e0d3/FLAG89a8394c9 [2020-09-21 11:22:05,661 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:22:05,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-09-21 11:22:05,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eede3394/7033dff3ea7f4a40a81cea31b767e0d3/FLAG89a8394c9 [2020-09-21 11:22:05,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eede3394/7033dff3ea7f4a40a81cea31b767e0d3 [2020-09-21 11:22:06,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:22:06,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:22:06,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:22:06,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:22:06,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:22:06,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:22:05" (1/1) ... [2020-09-21 11:22:06,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7cadc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06, skipping insertion in model container [2020-09-21 11:22:06,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:22:05" (1/1) ... [2020-09-21 11:22:06,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:22:06,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:22:06,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:22:06,282 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:22:06,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:22:06,321 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:22:06,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06 WrapperNode [2020-09-21 11:22:06,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:22:06,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:22:06,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:22:06,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:22:06,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (1/1) ... [2020-09-21 11:22:06,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:22:06,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:22:06,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:22:06,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:22:06,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (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 11:22:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:22:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:22:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-21 11:22:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:22:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:22:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-21 11:22:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:22:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:22:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:22:06,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:22:06,721 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:22:06,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:22:06 BoogieIcfgContainer [2020-09-21 11:22:06,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:22:06,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:22:06,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:22:06,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:22:06,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:22:05" (1/3) ... [2020-09-21 11:22:06,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12303a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:22:06, skipping insertion in model container [2020-09-21 11:22:06,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:06" (2/3) ... [2020-09-21 11:22:06,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12303a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:22:06, skipping insertion in model container [2020-09-21 11:22:06,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:22:06" (3/3) ... [2020-09-21 11:22:06,737 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c [2020-09-21 11:22:06,750 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:22:06,761 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:22:06,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:22:06,833 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:22:06,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:22:06,833 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:22:06,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:22:06,834 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:22:06,834 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:22:06,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:22:06,834 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:22:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-09-21 11:22:06,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:22:06,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:06,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:06,870 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:06,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-09-21 11:22:06,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:06,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433768096] [2020-09-21 11:22:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:22:07,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:22:07,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:22:07,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:22:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:07,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:07,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:07,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:07,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:07,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:07,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:22:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:07,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:22:07,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,221 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 11:22:07,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433768096] [2020-09-21 11:22:07,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:22:07,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:22:07,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652737651] [2020-09-21 11:22:07,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:22:07,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:07,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:22:07,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:22:07,249 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-09-21 11:22:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:07,359 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-09-21 11:22:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:22:07,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:22:07,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:07,374 INFO L225 Difference]: With dead ends: 30 [2020-09-21 11:22:07,374 INFO L226 Difference]: Without dead ends: 18 [2020-09-21 11:22:07,379 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 11:22:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-21 11:22:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-21 11:22:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-21 11:22:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-09-21 11:22:07,432 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-09-21 11:22:07,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:07,433 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-09-21 11:22:07,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:22:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-09-21 11:22:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 11:22:07,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:07,436 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 11:22:07,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:22:07,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:07,438 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-09-21 11:22:07,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:07,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100905078] [2020-09-21 11:22:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:22:07,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:22:07,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:22:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:07,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:22:07,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:07,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:07,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:07,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:07,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:07,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:07,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:22:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:22:07,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:07,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:22:07,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:07,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:22:07,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100905078] [2020-09-21 11:22:07,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:07,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:22:07,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479847385] [2020-09-21 11:22:07,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:22:07,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:07,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:22:07,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:22:07,737 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-09-21 11:22:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:07,822 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-09-21 11:22:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:22:07,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-21 11:22:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:07,825 INFO L225 Difference]: With dead ends: 25 [2020-09-21 11:22:07,825 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 11:22:07,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:22:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 11:22:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-09-21 11:22:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 11:22:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-09-21 11:22:07,839 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-09-21 11:22:07,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:07,841 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-09-21 11:22:07,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:22:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-09-21 11:22:07,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 11:22:07,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:07,844 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 11:22:07,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:22:07,845 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:07,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:07,845 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2020-09-21 11:22:07,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:07,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916051999] [2020-09-21 11:22:07,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:22:07,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:22:07,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:22:07,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:07,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:22:07,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:07,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:07,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:08,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:22:08,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:22:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:22:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:08,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:08,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:08,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:08,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,159 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 11:22:08,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916051999] [2020-09-21 11:22:08,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:08,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:22:08,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247011803] [2020-09-21 11:22:08,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:22:08,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:08,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:22:08,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:22:08,174 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-09-21 11:22:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:08,255 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-09-21 11:22:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:22:08,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-21 11:22:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:08,257 INFO L225 Difference]: With dead ends: 28 [2020-09-21 11:22:08,257 INFO L226 Difference]: Without dead ends: 24 [2020-09-21 11:22:08,258 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 11:22:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-21 11:22:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-09-21 11:22:08,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-21 11:22:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-09-21 11:22:08,266 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-09-21 11:22:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:08,266 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-09-21 11:22:08,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:22:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-09-21 11:22:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-21 11:22:08,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:08,268 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 11:22:08,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:22:08,268 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:08,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:08,269 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times [2020-09-21 11:22:08,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:08,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15599671] [2020-09-21 11:22:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:08,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:08,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:22:08,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:22:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:22:08,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:08,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:08,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:08,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:08,601 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 11:22:08,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15599671] [2020-09-21 11:22:08,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:08,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:22:08,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316738373] [2020-09-21 11:22:08,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:22:08,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:08,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:22:08,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:22:08,605 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2020-09-21 11:22:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:08,693 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-21 11:22:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:22:08,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-09-21 11:22:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:08,694 INFO L225 Difference]: With dead ends: 31 [2020-09-21 11:22:08,695 INFO L226 Difference]: Without dead ends: 27 [2020-09-21 11:22:08,695 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 11:22:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-21 11:22:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-21 11:22:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-21 11:22:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-09-21 11:22:08,703 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-09-21 11:22:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:08,703 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-09-21 11:22:08,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:22:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-09-21 11:22:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 11:22:08,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:08,705 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 11:22:08,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:22:08,706 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:08,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:08,706 INFO L82 PathProgramCache]: Analyzing trace with hash -183109604, now seen corresponding path program 4 times [2020-09-21 11:22:08,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:08,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240443645] [2020-09-21 11:22:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-21 11:22:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:22:08,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:22:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:22:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:08,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:08,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:22:08,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:22:08,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 11:22:08,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,928 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,928 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:08,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:22:08,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:08,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:08,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:08,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:09,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:22:09,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:09,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-21 11:22:09,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240443645] [2020-09-21 11:22:09,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:09,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:22:09,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775197699] [2020-09-21 11:22:09,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:22:09,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:09,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:22:09,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:22:09,110 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-09-21 11:22:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:09,216 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-21 11:22:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:22:09,217 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-09-21 11:22:09,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:09,219 INFO L225 Difference]: With dead ends: 34 [2020-09-21 11:22:09,219 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 11:22:09,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:22:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 11:22:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-21 11:22:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 11:22:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-21 11:22:09,227 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-09-21 11:22:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:09,228 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-21 11:22:09,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:22:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-21 11:22:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-21 11:22:09,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:09,230 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 11:22:09,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:22:09,231 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:09,231 INFO L82 PathProgramCache]: Analyzing trace with hash -155447420, now seen corresponding path program 5 times [2020-09-21 11:22:09,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:09,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521357677] [2020-09-21 11:22:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:22:09,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-21 11:22:09,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:22:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [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: 1 [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:09,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:22:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:22:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 11:22:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:09,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:22:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:09,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:09,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:09,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:09,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:22:09,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:09,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:09,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:09,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:22:09,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:09,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:09,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:09,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:09,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,717 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 11:22:09,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521357677] [2020-09-21 11:22:09,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:09,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:22:09,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693067347] [2020-09-21 11:22:09,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:22:09,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:09,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:22:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:22:09,720 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-21 11:22:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:09,865 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-21 11:22:09,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:22:09,866 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-09-21 11:22:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:09,867 INFO L225 Difference]: With dead ends: 37 [2020-09-21 11:22:09,867 INFO L226 Difference]: Without dead ends: 33 [2020-09-21 11:22:09,868 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 11:22:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-21 11:22:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-21 11:22:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 11:22:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-21 11:22:09,875 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-09-21 11:22:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:09,875 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-21 11:22:09,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:22:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-21 11:22:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-21 11:22:09,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:09,878 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 11:22:09,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:22:09,878 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1716183644, now seen corresponding path program 6 times [2020-09-21 11:22:09,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:09,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435084880] [2020-09-21 11:22:09,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-21 11:22:09,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 11:22:09,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:22:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:22:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:10,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:10,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:10,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:10,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:22:10,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:22:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-21 11:22:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:10,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:22:10,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:10,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:10,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:22:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:10,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:22:10,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:10,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:22:10,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:10,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:10,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:10,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:10,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:10,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,504 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 11:22:10,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435084880] [2020-09-21 11:22:10,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:10,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:22:10,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525183906] [2020-09-21 11:22:10,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:22:10,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:10,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:22:10,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:22:10,507 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-09-21 11:22:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:10,632 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-09-21 11:22:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:22:10,633 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-09-21 11:22:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:10,634 INFO L225 Difference]: With dead ends: 40 [2020-09-21 11:22:10,634 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 11:22:10,635 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 11:22:10,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 11:22:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-21 11:22:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 11:22:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-21 11:22:10,641 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-09-21 11:22:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:10,642 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-21 11:22:10,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:22:10,642 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-21 11:22:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-21 11:22:10,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:10,643 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 11:22:10,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:22:10,644 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:10,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1079602236, now seen corresponding path program 7 times [2020-09-21 11:22:10,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:10,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006109717] [2020-09-21 11:22:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:22:10,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:22:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 11:22:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:10,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:10,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:10,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:22:10,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:22:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:22:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:10,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-21 11:22:10,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:10,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:11,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:22:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:11,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:22:11,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:11,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:11,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:22:11,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:22:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:11,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:11,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:11,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:11,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:11,374 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 11:22:11,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006109717] [2020-09-21 11:22:11,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:11,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:22:11,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247958400] [2020-09-21 11:22:11,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:22:11,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:11,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:22:11,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:22:11,377 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states. [2020-09-21 11:22:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:11,527 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-21 11:22:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:22:11,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-09-21 11:22:11,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:11,530 INFO L225 Difference]: With dead ends: 43 [2020-09-21 11:22:11,530 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 11:22:11,531 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 11:22:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 11:22:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 11:22:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:22:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-09-21 11:22:11,537 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-09-21 11:22:11,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:11,538 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-09-21 11:22:11,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:22:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-09-21 11:22:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:22:11,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:11,540 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 11:22:11,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:22:11,540 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:11,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1035381916, now seen corresponding path program 8 times [2020-09-21 11:22:11,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:11,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998893831] [2020-09-21 11:22:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:22:11,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-21 11:22:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:22:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-21 11:22:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:11,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:11,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:22:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:11,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:12,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:22:12,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:12,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:22:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:12,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:22:12,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:12,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:22:12,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:12,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:22:12,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:12,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:12,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:12,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:12,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:12,636 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 11:22:12,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998893831] [2020-09-21 11:22:12,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:12,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:22:12,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479830531] [2020-09-21 11:22:12,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:22:12,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:12,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:22:12,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:22:12,640 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 15 states. [2020-09-21 11:22:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:12,829 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-21 11:22:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:22:12,830 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-09-21 11:22:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:12,831 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:22:12,831 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 11:22:12,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:22:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 11:22:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-21 11:22:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 11:22:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-21 11:22:12,845 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-09-21 11:22:12,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:12,846 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-21 11:22:12,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:22:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-21 11:22:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:22:12,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:12,850 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 11:22:12,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:22:12,850 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:12,852 INFO L82 PathProgramCache]: Analyzing trace with hash 952137732, now seen corresponding path program 9 times [2020-09-21 11:22:12,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:12,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424969911] [2020-09-21 11:22:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:22:12,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:22:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:13,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:22:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:22:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 11:22:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:22:13,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:13,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:22:13,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:13,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:22:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:13,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:22:13,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:13,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:13,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:13,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:13,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:13,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:22:13,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:13,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:14,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:14,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:14,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:14,086 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 11:22:14,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424969911] [2020-09-21 11:22:14,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:14,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:22:14,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392279699] [2020-09-21 11:22:14,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:22:14,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:14,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:22:14,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:22:14,089 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states. [2020-09-21 11:22:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:14,329 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-21 11:22:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:22:14,330 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-09-21 11:22:14,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:14,331 INFO L225 Difference]: With dead ends: 49 [2020-09-21 11:22:14,331 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:22:14,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:22:14,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:22:14,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-21 11:22:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 11:22:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-21 11:22:14,346 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-09-21 11:22:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:14,347 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-21 11:22:14,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:22:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-21 11:22:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:22:14,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:14,348 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 11:22:14,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:22:14,348 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:14,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1540970204, now seen corresponding path program 10 times [2020-09-21 11:22:14,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:14,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582954348] [2020-09-21 11:22:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:22:14,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-21 11:22:14,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:22:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:22:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:14,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:14,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:14,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-21 11:22:14,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:22:14,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:14,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:22:14,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:14,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:14,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-21 11:22:14,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:14,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:15,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 11:22:15,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:15,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:22:15,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,287 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:22:15,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:15,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:22:15,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:15,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:22:15,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:15,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:15,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:15,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:22:15,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:15,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:15,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:15,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:15,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:15,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,659 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 11:22:15,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582954348] [2020-09-21 11:22:15,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:15,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 11:22:15,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443378073] [2020-09-21 11:22:15,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:22:15,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:15,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:22:15,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:22:15,661 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-09-21 11:22:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:15,828 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-21 11:22:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:22:15,829 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-09-21 11:22:15,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:15,830 INFO L225 Difference]: With dead ends: 52 [2020-09-21 11:22:15,830 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 11:22:15,831 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 11:22:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 11:22:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-21 11:22:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 11:22:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-21 11:22:15,837 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-09-21 11:22:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:15,838 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-21 11:22:15,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:22:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-21 11:22:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:22:15,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:15,840 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 11:22:15,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:22:15,840 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:15,840 INFO L82 PathProgramCache]: Analyzing trace with hash -2010530748, now seen corresponding path program 11 times [2020-09-21 11:22:15,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:15,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744114366] [2020-09-21 11:22:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:22:16,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-21 11:22:16,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:22:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:16,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-21 11:22:16,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:22:16,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-21 11:22:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 11:22:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:16,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:22:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:16,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 11:22:16,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:16,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:22:16,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:16,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:22:16,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:16,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:17,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:22:17,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:17,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:22:17,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:22:17,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:17,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:17,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:17,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,289 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:17,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:17,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:17,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:17,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,375 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 11:22:17,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744114366] [2020-09-21 11:22:17,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:17,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:22:17,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757826835] [2020-09-21 11:22:17,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:22:17,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:17,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:22:17,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:22:17,378 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-09-21 11:22:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:17,567 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-21 11:22:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:22:17,567 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-09-21 11:22:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:17,568 INFO L225 Difference]: With dead ends: 55 [2020-09-21 11:22:17,569 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 11:22:17,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:22:17,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 11:22:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-21 11:22:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 11:22:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-21 11:22:17,580 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-09-21 11:22:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:17,584 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-21 11:22:17,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:22:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-21 11:22:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 11:22:17,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:17,591 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 11:22:17,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:22:17,592 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:17,592 INFO L82 PathProgramCache]: Analyzing trace with hash -986521316, now seen corresponding path program 12 times [2020-09-21 11:22:17,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:17,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059437104] [2020-09-21 11:22:17,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:22:17,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-21 11:22:17,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:22:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 11:22:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:17,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:17,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:18,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-21 11:22:18,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:22:18,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:18,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:22:18,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:18,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-21 11:22:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:18,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-21 11:22:18,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:18,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:22:18,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:18,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:18,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-21 11:22:18,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:18,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:18,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 11:22:18,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:19,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:22:19,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:19,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:22:19,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:19,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:19,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:19,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:22:19,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:19,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:19,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:19,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:19,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:19,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:19,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,354 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:19,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:19,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:19,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:19,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:19,502 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 11:22:19,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059437104] [2020-09-21 11:22:19,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:19,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-21 11:22:19,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159700346] [2020-09-21 11:22:19,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-21 11:22:19,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:19,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-21 11:22:19,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:22:19,505 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-09-21 11:22:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:19,715 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-09-21 11:22:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:22:19,716 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-09-21 11:22:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:19,717 INFO L225 Difference]: With dead ends: 58 [2020-09-21 11:22:19,717 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 11:22:19,720 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 11:22:19,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 11:22:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-21 11:22:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:22:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-21 11:22:19,732 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-09-21 11:22:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:19,732 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-21 11:22:19,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-21 11:22:19,733 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-21 11:22:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-21 11:22:19,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:19,734 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 11:22:19,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:22:19,734 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:19,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1073897604, now seen corresponding path program 13 times [2020-09-21 11:22:19,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:19,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528783625] [2020-09-21 11:22:19,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 11:22:19,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-21 11:22:19,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:22:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:19,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:19,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:22:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:20,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:22:20,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-21 11:22:20,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-21 11:22:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-21 11:22:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:21,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 11:22:21,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:21,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-21 11:22:21,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:21,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 11:22:21,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:21,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:22:21,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:21,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:22:21,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:21,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:22:21,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:21,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:22:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:21,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:22:21,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:21,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:21,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:21,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 32 proven. 327 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-09-21 11:22:21,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528783625] [2020-09-21 11:22:21,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:21,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:22:21,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499473814] [2020-09-21 11:22:21,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:22:21,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:21,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:22:21,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:22:21,944 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 21 states. [2020-09-21 11:22:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:22,197 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-21 11:22:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:22:22,197 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 91 [2020-09-21 11:22:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:22,198 INFO L225 Difference]: With dead ends: 61 [2020-09-21 11:22:22,198 INFO L226 Difference]: Without dead ends: 57 [2020-09-21 11:22:22,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 11:22:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-21 11:22:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-09-21 11:22:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 11:22:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-09-21 11:22:22,207 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-09-21 11:22:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:22,208 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-09-21 11:22:22,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:22:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-09-21 11:22:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 11:22:22,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:22,209 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 11:22:22,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:22:22,209 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1572648100, now seen corresponding path program 14 times [2020-09-21 11:22:22,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:22,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340576921] [2020-09-21 11:22:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 11:22:22,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-21 11:22:22,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:22:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:22:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:22,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:22,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:22,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-21 11:22:22,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:22:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-21 11:22:22,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:23,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-21 11:22:23,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-21 11:22:23,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:23,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:23,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-21 11:22:23,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-21 11:22:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:23,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-21 11:22:23,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:23,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:24,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:22:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:24,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,166 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:24,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:22:24,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:24,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:24,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:22:24,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:24,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:22:24,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:24,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:24,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:22:24,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:24,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:24,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:24,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:24,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:24,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:24,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:24,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:24,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:24,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:24,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:24,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:24,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,776 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 11:22:24,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340576921] [2020-09-21 11:22:24,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:24,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:22:24,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447986949] [2020-09-21 11:22:24,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:22:24,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:24,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:22:24,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:22:24,779 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 21 states. [2020-09-21 11:22:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:25,070 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-21 11:22:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:22:25,071 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2020-09-21 11:22:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:25,073 INFO L225 Difference]: With dead ends: 64 [2020-09-21 11:22:25,073 INFO L226 Difference]: Without dead ends: 60 [2020-09-21 11:22:25,079 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 11:22:25,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-21 11:22:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-21 11:22:25,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-21 11:22:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-21 11:22:25,093 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-09-21 11:22:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:25,094 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-21 11:22:25,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:22:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-21 11:22:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:22:25,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:25,096 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 11:22:25,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:22:25,099 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1584030916, now seen corresponding path program 15 times [2020-09-21 11:22:25,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:25,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488268659] [2020-09-21 11:22:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:22:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-21 11:22:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:25,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-21 11:22:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:22:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-21 11:22:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,001 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:26,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-21 11:22:26,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:26,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:26,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-21 11:22:26,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:26,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-21 11:22:26,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:26,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-21 11:22:26,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:26,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-21 11:22:26,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:27,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 11:22:27,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:27,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:27,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:22:27,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:27,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:27,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:22:27,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:27,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:27,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:22:27,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:27,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:22:27,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:27,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:22:27,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:22:27,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:27,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:27,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:27,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:27,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:27,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:27,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:27,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:27,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:27,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:27,827 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 11:22:27,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488268659] [2020-09-21 11:22:27,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:27,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:22:27,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001894987] [2020-09-21 11:22:27,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:22:27,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:27,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:22:27,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:22:27,831 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 21 states. [2020-09-21 11:22:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:28,080 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-21 11:22:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:22:28,080 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2020-09-21 11:22:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:28,081 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:22:28,081 INFO L226 Difference]: Without dead ends: 63 [2020-09-21 11:22:28,085 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 11:22:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-21 11:22:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-21 11:22:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 11:22:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-21 11:22:28,092 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-09-21 11:22:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:28,093 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-21 11:22:28,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:22:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-21 11:22:28,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:22:28,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:28,100 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 11:22:28,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:22:28,100 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:28,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1066046876, now seen corresponding path program 16 times [2020-09-21 11:22:28,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:28,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348966714] [2020-09-21 11:22:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-21 11:22:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-21 11:22:28,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:22:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 11:22:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:29,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-21 11:22:29,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:29,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-21 11:22:29,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:29,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:29,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:29,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-21 11:22:29,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:29,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:29,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:29,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-21 11:22:29,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:30,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-21 11:22:30,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:30,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 11:22:30,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:30,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:30,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-21 11:22:30,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:30,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:30,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:30,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 11:22:30,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:30,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:30,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 11:22:30,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:30,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:22:30,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:30,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:30,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:31,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:22:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:22:31,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:31,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:22:31,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:31,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:31,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:31,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:31,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:31,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:31,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 32 proven. 496 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-09-21 11:22:31,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348966714] [2020-09-21 11:22:31,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:31,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:22:31,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474908944] [2020-09-21 11:22:31,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:22:31,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:31,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:22:31,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:22:31,403 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-09-21 11:22:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:31,705 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-09-21 11:22:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:22:31,706 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 109 [2020-09-21 11:22:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:31,707 INFO L225 Difference]: With dead ends: 70 [2020-09-21 11:22:31,707 INFO L226 Difference]: Without dead ends: 66 [2020-09-21 11:22:31,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560 [2020-09-21 11:22:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-21 11:22:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-21 11:22:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-21 11:22:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-21 11:22:31,713 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-09-21 11:22:31,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:31,713 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-21 11:22:31,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:22:31,713 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-21 11:22:31,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-21 11:22:31,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:31,715 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 11:22:31,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:22:31,715 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:31,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:31,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1300351236, now seen corresponding path program 17 times [2020-09-21 11:22:31,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:31,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261291821] [2020-09-21 11:22:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:22:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:32,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:22:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:32,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-21 11:22:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:22:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:22:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:32,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-21 11:22:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,316 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:33,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-21 11:22:33,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:33,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-21 11:22:33,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:33,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:33,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:33,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-21 11:22:33,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:22:34,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:22:34,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 11:22:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:34,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:22:34,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:34,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:22:34,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:34,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:22:34,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:34,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:34,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:22:34,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:34,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:22:34,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:34,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:34,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:34,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:22:34,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:34,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:34,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:34,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:22:34,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:34,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:34,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,927 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 11:22:34,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261291821] [2020-09-21 11:22:34,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:34,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:22:34,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338972302] [2020-09-21 11:22:34,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:22:34,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:34,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:22:34,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:22:34,931 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 23 states. [2020-09-21 11:22:35,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:35,277 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-09-21 11:22:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:22:35,278 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115 [2020-09-21 11:22:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:35,279 INFO L225 Difference]: With dead ends: 73 [2020-09-21 11:22:35,279 INFO L226 Difference]: Without dead ends: 69 [2020-09-21 11:22:35,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:22:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-21 11:22:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-21 11:22:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-21 11:22:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-09-21 11:22:35,285 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-09-21 11:22:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:35,286 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-09-21 11:22:35,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:22:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-09-21 11:22:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:22:35,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:35,288 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 11:22:35,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:22:35,288 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:35,289 INFO L82 PathProgramCache]: Analyzing trace with hash 227065820, now seen corresponding path program 18 times [2020-09-21 11:22:35,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:35,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821681632] [2020-09-21 11:22:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:22:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-21 11:22:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:22:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:22:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:35,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:35,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-21 11:22:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:22:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:36,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:36,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-21 11:22:36,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:37,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-21 11:22:37,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-21 11:22:37,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:37,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:37,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 11:22:37,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:37,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:37,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-21 11:22:37,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:38,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-21 11:22:38,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:38,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:38,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:22:38,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:38,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:38,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:22:38,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:22:38,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:22:38,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:38,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:38,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:38,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:38,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:38,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:38,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:38,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:38,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:38,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:38,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:38,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:38,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:38,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:38,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:38,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:38,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:38,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:38,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:38,768 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 11:22:38,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821681632] [2020-09-21 11:22:38,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:38,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-21 11:22:38,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819695568] [2020-09-21 11:22:38,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-21 11:22:38,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:38,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-21 11:22:38,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:22:38,770 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2020-09-21 11:22:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:39,144 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-21 11:22:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 11:22:39,149 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-09-21 11:22:39,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:39,150 INFO L225 Difference]: With dead ends: 76 [2020-09-21 11:22:39,151 INFO L226 Difference]: Without dead ends: 72 [2020-09-21 11:22:39,151 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 11:22:39,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-21 11:22:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-21 11:22:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 11:22:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-09-21 11:22:39,156 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-09-21 11:22:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:39,156 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-09-21 11:22:39,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-21 11:22:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-09-21 11:22:39,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:22:39,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:39,158 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 11:22:39,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:22:39,159 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:39,159 INFO L82 PathProgramCache]: Analyzing trace with hash -479687356, now seen corresponding path program 19 times [2020-09-21 11:22:39,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:39,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968105041] [2020-09-21 11:22:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:39,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:22:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:39,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:39,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:39,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:39,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:39,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:39,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-21 11:22:39,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:22:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:22:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-21 11:22:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:40,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:40,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-21 11:22:40,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:22:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-21 11:22:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:40,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:40,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:40,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:40,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:40,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:40,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:22:40,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:40,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:40,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-21 11:22:40,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-21 11:22:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:41,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:41,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:41,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:41,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-21 11:22:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:41,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:41,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:41,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:41,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:41,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-21 11:22:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:41,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:41,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:41,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:41,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:41,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:41,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:41,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-21 11:22:41,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-21 11:22:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:41,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:41,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-21 11:22:41,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:41,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:22:41,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:41,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 11:22:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-21 11:22:42,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 11:22:42,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,323 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,323 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:42,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:22:42,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:22:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:42,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:22:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:22:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:42,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:22:42,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 11:22:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:22:42,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:22:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:42,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:42,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:42,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 11:22:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:42,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:22:42,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:42,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 11:22:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:42,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:42,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:22:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:42,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:42,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:22:42,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:42,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:42,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:42,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:42,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:42,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:42,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:42,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:42,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:22:42,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:43,070 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 11:22:43,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968105041] [2020-09-21 11:22:43,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:43,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:22:43,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176275870] [2020-09-21 11:22:43,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:22:43,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:43,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:22:43,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:22:43,073 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states. [2020-09-21 11:22:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:43,494 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-21 11:22:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:22:43,495 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2020-09-21 11:22:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:43,496 INFO L225 Difference]: With dead ends: 79 [2020-09-21 11:22:43,496 INFO L226 Difference]: Without dead ends: 75 [2020-09-21 11:22:43,497 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 11:22:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-21 11:22:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-21 11:22:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 11:22:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-21 11:22:43,503 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-09-21 11:22:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:43,503 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-21 11:22:43,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:22:43,503 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-21 11:22:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-21 11:22:43,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:43,505 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 11:22:43,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:22:43,505 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:43,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1598174692, now seen corresponding path program 20 times [2020-09-21 11:22:43,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:43,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201936092] [2020-09-21 11:22:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:22:43,540 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:22:43,540 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:22:43,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:22:43,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:22:43 BoogieIcfgContainer [2020-09-21 11:22:43,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:22:43,579 INFO L168 Benchmark]: Toolchain (without parser) took 37565.56 ms. Allocated memory was 137.9 MB in the beginning and 714.1 MB in the end (delta: 576.2 MB). Free memory was 100.0 MB in the beginning and 162.6 MB in the end (delta: -62.6 MB). Peak memory consumption was 513.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:43,580 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:22:43,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.22 ms. Allocated memory is still 137.9 MB. Free memory was 99.4 MB in the beginning and 90.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:43,581 INFO L168 Benchmark]: Boogie Preprocessor took 33.15 ms. Allocated memory is still 137.9 MB. Free memory was 90.1 MB in the beginning and 88.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:43,582 INFO L168 Benchmark]: RCFGBuilder took 370.18 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 88.8 MB in the beginning and 168.7 MB in the end (delta: -79.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:43,583 INFO L168 Benchmark]: TraceAbstraction took 36848.10 ms. Allocated memory was 200.8 MB in the beginning and 714.1 MB in the end (delta: 513.3 MB). Free memory was 168.0 MB in the beginning and 162.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 518.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:43,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.22 ms. Allocated memory is still 137.9 MB. Free memory was 99.4 MB in the beginning and 90.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.15 ms. Allocated memory is still 137.9 MB. Free memory was 90.1 MB in the beginning and 88.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 370.18 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 88.8 MB in the beginning and 168.7 MB in the end (delta: -79.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36848.10 ms. Allocated memory was 200.8 MB in the beginning and 714.1 MB in the end (delta: 513.3 MB). Free memory was 168.0 MB in the beginning and 162.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 518.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int a = 20; [L13] int b = 0; [L14] CALL, EXPR sum(a, b) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND TRUE n <= 0 [L5] return m + n; [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L14] RET, EXPR sum(a, b) [L14] int result = sum(a, b); [L15] COND TRUE result == a + b [L16] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.7s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 894 SDslu, 1176 SDs, 0 SdLazy, 833 SolverSat, 236 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 483 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2691 ImplicationChecksByTransitivity, 6.2s 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, 0.4s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 305814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3160/7600 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...