/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --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_15x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:59:18,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:59:18,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:59:18,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:59:18,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:59:18,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:59:18,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:59:18,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:59:18,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:59:18,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:59:18,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:59:18,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:59:18,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:59:18,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:59:18,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:59:18,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:59:18,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:59:18,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:59:18,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:59:18,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:59:18,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:59:18,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:59:18,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:59:18,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:59:18,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:59:18,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:59:18,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:59:18,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:59:18,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:59:18,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:59:18,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:59:18,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:59:18,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:59:18,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:59:18,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:59:18,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:59:18,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:59:18,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:59:18,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:59:18,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:59:18,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:59:18,350 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 [2020-09-24 15:59:18,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:59:18,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:59:18,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:59:18,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:59:18,394 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:59:18,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:59:18,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:59:18,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:59:18,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:59:18,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:59:18,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:59:18,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:59:18,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:59:18,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:59:18,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:59:18,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:59:18,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:59:18,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:59:18,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:59:18,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:59:18,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:59:18,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:59:18,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:59:18,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:59:18,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:59:18,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:59:18,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:59:18,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:59:18,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:59:18,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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; [2020-09-24 15:59:18,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:59:18,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:59:18,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:59:18,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:59:18,962 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:59:18,963 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_15x0-1.c [2020-09-24 15:59:19,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c75edc0/3d5b8d3c45924959b6bb23c61a4c6364/FLAGd0e4df4bb [2020-09-24 15:59:19,616 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:59:19,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_15x0-1.c [2020-09-24 15:59:19,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c75edc0/3d5b8d3c45924959b6bb23c61a4c6364/FLAGd0e4df4bb [2020-09-24 15:59:19,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97c75edc0/3d5b8d3c45924959b6bb23c61a4c6364 [2020-09-24 15:59:19,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:59:19,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:59:19,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:19,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:59:19,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:59:19,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:19" (1/1) ... [2020-09-24 15:59:19,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41357594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:19, skipping insertion in model container [2020-09-24 15:59:19,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:19" (1/1) ... [2020-09-24 15:59:20,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:59:20,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:59:20,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:20,252 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:59:20,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:20,291 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:59:20,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20 WrapperNode [2020-09-24 15:59:20,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:20,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:59:20,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:59:20,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:59:20,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (1/1) ... [2020-09-24 15:59:20,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:59:20,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:59:20,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:59:20,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:59:20,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (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 [2020-09-24 15:59:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:59:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:59:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-24 15:59:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:59:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-24 15:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:59:20,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:59:20,718 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:59:20,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:20 BoogieIcfgContainer [2020-09-24 15:59:20,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:59:20,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:59:20,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:59:20,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:59:20,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:59:19" (1/3) ... [2020-09-24 15:59:20,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c03e27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:20, skipping insertion in model container [2020-09-24 15:59:20,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:20" (2/3) ... [2020-09-24 15:59:20,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c03e27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:20, skipping insertion in model container [2020-09-24 15:59:20,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:20" (3/3) ... [2020-09-24 15:59:20,734 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_15x0-1.c [2020-09-24 15:59:20,747 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:59:20,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:59:20,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:59:20,856 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:59:20,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:59:20,857 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:59:20,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:59:20,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:59:20,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:59:20,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:59:20,867 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:59:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-24 15:59:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 15:59:20,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:20,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:20,905 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:20,912 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-24 15:59:20,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:20,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573070230] [2020-09-24 15:59:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:59:21,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:21,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:21,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:21,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:21,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:21,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:21,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:59:21,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573070230] [2020-09-24 15:59:21,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:59:21,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:59:21,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74924919] [2020-09-24 15:59:21,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:59:21,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:21,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:59:21,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:59:21,248 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-24 15:59:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:21,369 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-24 15:59:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:59:21,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-24 15:59:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:21,390 INFO L225 Difference]: With dead ends: 39 [2020-09-24 15:59:21,390 INFO L226 Difference]: Without dead ends: 25 [2020-09-24 15:59:21,395 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 [2020-09-24 15:59:21,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-24 15:59:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-24 15:59:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 15:59:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-24 15:59:21,450 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-24 15:59:21,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:21,451 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-24 15:59:21,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:59:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-24 15:59:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 15:59:21,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:21,454 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:21,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:59:21,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:21,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:21,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-24 15:59:21,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:21,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037082774] [2020-09-24 15:59:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:21,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:59:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:21,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:21,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:21,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:21,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:21,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:21,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:59:21,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:21,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:21,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:59:21,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037082774] [2020-09-24 15:59:21,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:21,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:59:21,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702559957] [2020-09-24 15:59:21,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:59:21,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:21,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:59:21,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:59:21,714 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-24 15:59:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:21,783 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-24 15:59:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:59:21,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-24 15:59:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:21,785 INFO L225 Difference]: With dead ends: 36 [2020-09-24 15:59:21,785 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 15:59:21,787 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 [2020-09-24 15:59:21,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 15:59:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 15:59:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 15:59:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 15:59:21,795 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-24 15:59:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:21,796 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 15:59:21,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:59:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 15:59:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 15:59:21,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:21,798 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:21,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:59:21,798 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:21,799 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-24 15:59:21,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:21,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741736812] [2020-09-24 15:59:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 15:59:21,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 15:59:21,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:21,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:21,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:21,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:21,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:22,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 15:59:22,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:22,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:22,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:59:22,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:22,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:22,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:22,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:22,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:22,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:22,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 15:59:22,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741736812] [2020-09-24 15:59:22,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:22,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:22,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291144340] [2020-09-24 15:59:22,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:22,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:22,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:22,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:22,205 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-09-24 15:59:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:22,288 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-24 15:59:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:59:22,289 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-24 15:59:22,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:22,290 INFO L225 Difference]: With dead ends: 41 [2020-09-24 15:59:22,291 INFO L226 Difference]: Without dead ends: 35 [2020-09-24 15:59:22,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-24 15:59:22,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-24 15:59:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 15:59:22,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-24 15:59:22,300 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-24 15:59:22,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:22,301 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-24 15:59:22,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:22,301 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-24 15:59:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 15:59:22,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:22,303 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:22,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:59:22,304 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:22,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:22,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-24 15:59:22,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:22,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402989208] [2020-09-24 15:59:22,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 15:59:22,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:22,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:59:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:22,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:22,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:22,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:22,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:22,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 15:59:22,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:22,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:22,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:22,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:22,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:22,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:22,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 15:59:22,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:22,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:22,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:59:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-24 15:59:22,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402989208] [2020-09-24 15:59:22,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:22,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:22,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556495573] [2020-09-24 15:59:22,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:22,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:22,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:22,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:22,642 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2020-09-24 15:59:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:22,730 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-24 15:59:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:59:22,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-09-24 15:59:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:22,732 INFO L225 Difference]: With dead ends: 46 [2020-09-24 15:59:22,732 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 15:59:22,733 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 [2020-09-24 15:59:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 15:59:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-24 15:59:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 15:59:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-24 15:59:22,742 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-24 15:59:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:22,743 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-24 15:59:22,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-24 15:59:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 15:59:22,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:22,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:22,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:59:22,745 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-24 15:59:22,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:22,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596801702] [2020-09-24 15:59:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:22,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:59:22,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 15:59:22,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:22,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:59:22,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:59:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:23,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:59:23,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:23,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:23,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:23,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:23,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:23,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:23,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:23,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 15:59:23,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596801702] [2020-09-24 15:59:23,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:23,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 15:59:23,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937886818] [2020-09-24 15:59:23,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:59:23,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:23,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:59:23,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:59:23,269 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-09-24 15:59:23,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:23,386 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 15:59:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:59:23,387 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-24 15:59:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:23,391 INFO L225 Difference]: With dead ends: 51 [2020-09-24 15:59:23,391 INFO L226 Difference]: Without dead ends: 45 [2020-09-24 15:59:23,392 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 [2020-09-24 15:59:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-24 15:59:23,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-24 15:59:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-24 15:59:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-24 15:59:23,406 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-24 15:59:23,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:23,409 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-24 15:59:23,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:59:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-24 15:59:23,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 15:59:23,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:23,412 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:23,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:59:23,413 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:23,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-24 15:59:23,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:23,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179979710] [2020-09-24 15:59:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 15:59:23,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:23,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:23,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:23,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 15:59:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:23,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:23,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:23,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:23,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:23,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:23,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:23,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:23,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:23,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 9 proven. 75 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 15:59:23,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179979710] [2020-09-24 15:59:23,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:23,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:23,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144473916] [2020-09-24 15:59:23,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:23,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:23,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:23,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:23,902 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2020-09-24 15:59:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:24,057 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-24 15:59:24,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:59:24,058 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-24 15:59:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:24,059 INFO L225 Difference]: With dead ends: 56 [2020-09-24 15:59:24,060 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 15:59:24,061 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 [2020-09-24 15:59:24,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 15:59:24,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 15:59:24,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 15:59:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 15:59:24,068 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-24 15:59:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:24,069 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 15:59:24,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 15:59:24,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 15:59:24,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:24,071 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:24,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:59:24,071 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:24,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:24,072 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-24 15:59:24,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:24,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984096910] [2020-09-24 15:59:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:59:24,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:24,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 15:59:24,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:24,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:24,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:24,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:24,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:59:24,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:24,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:24,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:24,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:24,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:24,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:24,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:24,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:24,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:24,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:24,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:24,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 15 proven. 89 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 15:59:24,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984096910] [2020-09-24 15:59:24,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:24,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:59:24,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706732785] [2020-09-24 15:59:24,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:59:24,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:24,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:59:24,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:24,613 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states. [2020-09-24 15:59:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:24,764 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-24 15:59:24,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:59:24,765 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-09-24 15:59:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:24,767 INFO L225 Difference]: With dead ends: 61 [2020-09-24 15:59:24,767 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 15:59:24,768 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 [2020-09-24 15:59:24,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 15:59:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 15:59:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 15:59:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-24 15:59:24,776 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-24 15:59:24,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:24,777 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-24 15:59:24,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:59:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-24 15:59:24,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 15:59:24,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:24,779 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:24,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:59:24,779 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:24,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:24,780 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-24 15:59:24,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:24,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749898044] [2020-09-24 15:59:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-24 15:59:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 15:59:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:25,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 15:59:25,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,108 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,109 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:25,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 15:59:25,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,204 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:25,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:25,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:25,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:25,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:25,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:25,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:25,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:25,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:25,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:25,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,465 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:25,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:25,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:25,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 26 proven. 137 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 15:59:25,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749898044] [2020-09-24 15:59:25,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:25,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:59:25,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020286694] [2020-09-24 15:59:25,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:59:25,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:25,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:59:25,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:25,524 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states. [2020-09-24 15:59:25,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:25,691 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-24 15:59:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:59:25,692 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-24 15:59:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:25,694 INFO L225 Difference]: With dead ends: 66 [2020-09-24 15:59:25,694 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 15:59:25,695 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 [2020-09-24 15:59:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 15:59:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-24 15:59:25,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 15:59:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-24 15:59:25,702 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-24 15:59:25,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:25,703 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-24 15:59:25,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:59:25,703 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-24 15:59:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-24 15:59:25,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:25,704 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:25,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:59:25,705 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:25,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-24 15:59:25,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:25,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428835838] [2020-09-24 15:59:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 15:59:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:25,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 15:59:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:25,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:25,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:25,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:25,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:25,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:26,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:26,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:26,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:26,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:26,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:26,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:26,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:26,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:26,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:26,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:26,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:26,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:26,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:26,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:26,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:26,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:26,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:26,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 36 proven. 177 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-24 15:59:26,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428835838] [2020-09-24 15:59:26,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:26,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:26,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625021428] [2020-09-24 15:59:26,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:26,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:26,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:26,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:26,614 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 15 states. [2020-09-24 15:59:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:26,783 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 15:59:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:59:26,784 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 90 [2020-09-24 15:59:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:26,785 INFO L225 Difference]: With dead ends: 71 [2020-09-24 15:59:26,785 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 15:59:26,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 15:59:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-24 15:59:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 15:59:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-24 15:59:26,793 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-24 15:59:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:26,794 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-24 15:59:26,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-24 15:59:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 15:59:26,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:26,795 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:26,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:59:26,796 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:26,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:26,796 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-24 15:59:26,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:26,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099362469] [2020-09-24 15:59:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-24 15:59:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:59:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 15:59:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:26,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:26,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:27,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:27,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 15:59:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,170 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:27,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:27,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:27,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:27,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:27,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:27,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:27,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:27,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:27,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:27,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:27,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:27,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:27,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:27,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:27,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:27,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:27,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 60 proven. 208 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-09-24 15:59:27,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099362469] [2020-09-24 15:59:27,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:27,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:27,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548690204] [2020-09-24 15:59:27,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:27,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:27,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:27,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:27,897 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-24 15:59:28,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:28,068 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-24 15:59:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:59:28,069 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-24 15:59:28,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:28,072 INFO L225 Difference]: With dead ends: 76 [2020-09-24 15:59:28,072 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 15:59:28,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:28,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 15:59:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 15:59:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 15:59:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 15:59:28,084 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-24 15:59:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:28,085 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 15:59:28,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 15:59:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-24 15:59:28,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:28,089 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:28,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:59:28,089 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:28,089 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-24 15:59:28,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:28,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381587323] [2020-09-24 15:59:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:28,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 15:59:28,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:28,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:28,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,387 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:28,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 15:59:28,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:28,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 15:59:28,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 15:59:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:28,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:28,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:59:28,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:28,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:29,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:29,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:29,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,170 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:29,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:29,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:29,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:29,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:29,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:29,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:29,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:29,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,343 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:29,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 48 proven. 266 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-09-24 15:59:29,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381587323] [2020-09-24 15:59:29,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:29,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 15:59:29,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424135968] [2020-09-24 15:59:29,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 15:59:29,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:29,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 15:59:29,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:29,417 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-24 15:59:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:29,585 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-24 15:59:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:59:29,586 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-09-24 15:59:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:29,586 INFO L225 Difference]: With dead ends: 81 [2020-09-24 15:59:29,587 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 15:59:29,588 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 [2020-09-24 15:59:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 15:59:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-24 15:59:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 15:59:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-24 15:59:29,594 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 108 [2020-09-24 15:59:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:29,595 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-24 15:59:29,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 15:59:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-24 15:59:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-24 15:59:29,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:29,596 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:29,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:59:29,596 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1749540651, now seen corresponding path program 11 times [2020-09-24 15:59:29,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:29,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165520453] [2020-09-24 15:59:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 15:59:29,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:59:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:29,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:29,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 15:59:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 15:59:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:30,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:30,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:30,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 15:59:30,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:30,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:30,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:30,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:30,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:30,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:30,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:30,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:59:30,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:30,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:30,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:30,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:30,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:30,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:30,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:30,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:30,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,858 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,858 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:30,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:30,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:30,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 27 proven. 348 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-09-24 15:59:31,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165520453] [2020-09-24 15:59:31,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:31,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:59:31,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022347233] [2020-09-24 15:59:31,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:59:31,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:31,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:59:31,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:31,012 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 17 states. [2020-09-24 15:59:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:31,203 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-24 15:59:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:59:31,204 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-09-24 15:59:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:31,205 INFO L225 Difference]: With dead ends: 86 [2020-09-24 15:59:31,205 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 15:59:31,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:59:31,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 15:59:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-24 15:59:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 15:59:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 15:59:31,212 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 117 [2020-09-24 15:59:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:31,213 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 15:59:31,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:59:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 15:59:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-24 15:59:31,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:31,215 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:31,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:59:31,215 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1141580405, now seen corresponding path program 12 times [2020-09-24 15:59:31,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:31,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234208808] [2020-09-24 15:59:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 15:59:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:59:31,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 15:59:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:31,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:59:31,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:59:31,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:32,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 15:59:32,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:32,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:32,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:32,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:32,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:59:32,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:32,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:32,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:32,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:32,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:32,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:32,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:32,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:32,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:32,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:32,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 6 proven. 412 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2020-09-24 15:59:32,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234208808] [2020-09-24 15:59:32,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:32,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 15:59:32,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364500851] [2020-09-24 15:59:32,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 15:59:32,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 15:59:32,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:59:32,764 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 18 states. [2020-09-24 15:59:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:33,027 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-09-24 15:59:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:59:33,028 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 126 [2020-09-24 15:59:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:33,029 INFO L225 Difference]: With dead ends: 91 [2020-09-24 15:59:33,029 INFO L226 Difference]: Without dead ends: 85 [2020-09-24 15:59:33,030 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 [2020-09-24 15:59:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-24 15:59:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-24 15:59:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 15:59:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-09-24 15:59:33,042 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 126 [2020-09-24 15:59:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:33,043 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-09-24 15:59:33,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 15:59:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-09-24 15:59:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-24 15:59:33,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:33,045 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:33,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:59:33,046 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:33,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:33,047 INFO L82 PathProgramCache]: Analyzing trace with hash 55997035, now seen corresponding path program 13 times [2020-09-24 15:59:33,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:33,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250766955] [2020-09-24 15:59:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-24 15:59:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 15:59:33,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:33,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:33,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:33,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 15:59:33,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 15:59:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:33,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 15:59:33,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:33,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 15:59:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:33,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:34,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 15:59:34,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:34,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:34,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:34,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:34,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:34,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:34,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:34,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:34,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 15:59:34,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:34,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:34,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:34,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:34,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:34,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:34,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:34,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:34,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:34,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:34,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:34,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:34,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:35,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:35,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:35,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:35,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:35,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 48 proven. 519 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-09-24 15:59:35,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250766955] [2020-09-24 15:59:35,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:35,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:35,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316343370] [2020-09-24 15:59:35,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:35,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:35,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:35,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:35,287 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 21 states. [2020-09-24 15:59:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:35,554 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-09-24 15:59:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:59:35,554 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 135 [2020-09-24 15:59:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:35,555 INFO L225 Difference]: With dead ends: 96 [2020-09-24 15:59:35,555 INFO L226 Difference]: Without dead ends: 90 [2020-09-24 15:59:35,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 15:59:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-24 15:59:35,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-24 15:59:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 15:59:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-09-24 15:59:35,567 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 135 [2020-09-24 15:59:35,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:35,568 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-09-24 15:59:35,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-09-24 15:59:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 15:59:35,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:35,569 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:35,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:59:35,570 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:35,570 INFO L82 PathProgramCache]: Analyzing trace with hash 394086239, now seen corresponding path program 14 times [2020-09-24 15:59:35,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:35,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233611779] [2020-09-24 15:59:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:59:35,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-24 15:59:35,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 15:59:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:35,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:35,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 15:59:36,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-09-24 15:59:36,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:36,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-24 15:59:36,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:36,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:36,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 15:59:36,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:36,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,847 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:36,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 15:59:36,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:37,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 15:59:37,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 15:59:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:37,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:37,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:37,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:37,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:37,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:59:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:37,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:37,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:37,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:37,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:37,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:37,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:37,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:37,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:37,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:37,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:37,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:37,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 107 proven. 555 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-09-24 15:59:38,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233611779] [2020-09-24 15:59:38,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:38,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:38,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879914903] [2020-09-24 15:59:38,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:38,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:38,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:38,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:38,106 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 21 states. [2020-09-24 15:59:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:38,380 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2020-09-24 15:59:38,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:59:38,381 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 144 [2020-09-24 15:59:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:38,382 INFO L225 Difference]: With dead ends: 101 [2020-09-24 15:59:38,382 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 15:59:38,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:59:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 15:59:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-09-24 15:59:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 15:59:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-09-24 15:59:38,396 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 144 [2020-09-24 15:59:38,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:38,397 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-09-24 15:59:38,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:38,397 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-09-24 15:59:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:59:38,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:38,401 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:38,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:59:38,402 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:38,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:38,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1047772929, now seen corresponding path program 15 times [2020-09-24 15:59:38,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:38,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793674040] [2020-09-24 15:59:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:39,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:59:39,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -3 [2020-09-24 15:59:39,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 3 [2020-09-24 15:59:39,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:39,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:59:39,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:39,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-09-24 15:59:39,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-09-24 15:59:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 15:59:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-24 15:59:39,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:39,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:39,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:39,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:39,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:39,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:39,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:39,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:39,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:39,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:39,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:39,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:39,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:39,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:39,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 81 [2020-09-24 15:59:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 15:59:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:41,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-09-24 15:59:41,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 77 [2020-09-24 15:59:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:41,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:42,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-09-24 15:59:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 72 [2020-09-24 15:59:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:42,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-09-24 15:59:42,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-09-24 15:59:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:43,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-09-24 15:59:43,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-09-24 15:59:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:43,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-24 15:59:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-09-24 15:59:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:44,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-24 15:59:44,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-09-24 15:59:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-24 15:59:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:59:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:45,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 15:59:45,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:45,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 15:59:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:45,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,847 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:45,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 15:59:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,993 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:45,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 15:59:45,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:59:46,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:46,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:46,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:46,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:46,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:46,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:46,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2020-09-24 15:59:46,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793674040] [2020-09-24 15:59:46,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:46,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:59:46,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836926100] [2020-09-24 15:59:46,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:59:46,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:46,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:59:46,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:59:46,562 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand 9 states. [2020-09-24 15:59:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:46,678 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2020-09-24 15:59:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:59:46,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 153 [2020-09-24 15:59:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:46,679 INFO L225 Difference]: With dead ends: 95 [2020-09-24 15:59:46,680 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:59:46,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 50 SyntacticMatches, 28 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:59:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:59:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:59:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:59:46,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-09-24 15:59:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:46,683 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:59:46,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:59:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:59:46,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:59:46,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:59:46,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:59:46,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 15:59:46,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:59:46,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:59:46,760 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:59:46,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:59:46,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:59:46,761 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-09-24 15:59:46,761 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (<= |sum_#in~n| sum_~n) (= sum_~m |sum_#in~m|) (<= sum_~n |sum_#in~n|)) [2020-09-24 15:59:46,761 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-24 15:59:46,761 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 15:59:46,761 INFO L268 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-09-24 15:59:46,762 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-09-24 15:59:46,763 INFO L268 CegarLoopResult]: For program point L7-3(line 7) no Hoare annotation was computed. [2020-09-24 15:59:46,763 INFO L268 CegarLoopResult]: For program point L3(lines 3 9) no Hoare annotation was computed. [2020-09-24 15:59:46,763 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-09-24 15:59:46,763 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-09-24 15:59:46,764 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-09-24 15:59:46,765 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-09-24 15:59:46,765 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-09-24 15:59:46,765 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 15:59:46,765 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-09-24 15:59:46,765 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= main_~a~0 15) [2020-09-24 15:59:46,765 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 15:59:46,765 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 15:59:46,766 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-09-24 15:59:46,766 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 15:59:46,766 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-24 15:59:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:59:46 BoogieIcfgContainer [2020-09-24 15:59:46,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:59:46,793 INFO L168 Benchmark]: Toolchain (without parser) took 26817.62 ms. Allocated memory was 141.6 MB in the beginning and 583.5 MB in the end (delta: 442.0 MB). Free memory was 103.1 MB in the beginning and 233.7 MB in the end (delta: -130.6 MB). Peak memory consumption was 311.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,794 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 141.6 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.02 ms. Allocated memory is still 141.6 MB. Free memory was 102.3 MB in the beginning and 92.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,795 INFO L168 Benchmark]: Boogie Preprocessor took 37.61 ms. Allocated memory is still 141.6 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,800 INFO L168 Benchmark]: RCFGBuilder took 392.97 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 170.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,801 INFO L168 Benchmark]: TraceAbstraction took 26062.16 ms. Allocated memory was 203.4 MB in the beginning and 583.5 MB in the end (delta: 380.1 MB). Free memory was 170.6 MB in the beginning and 233.7 MB in the end (delta: -63.1 MB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:46,805 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 141.6 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.02 ms. Allocated memory is still 141.6 MB. Free memory was 102.3 MB in the beginning and 92.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.61 ms. Allocated memory is still 141.6 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.97 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 170.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26062.16 ms. Allocated memory was 203.4 MB in the beginning and 583.5 MB in the end (delta: 380.1 MB). Free memory was 170.6 MB in the beginning and 233.7 MB in the end (delta: -63.1 MB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.8s, OverallIterations: 16, TraceHistogramMax: 16, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 286 SDtfs, 1050 SDslu, 1303 SDs, 0 SdLazy, 646 SolverSat, 140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 644 GetRequests, 318 SyntacticMatches, 28 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=15, 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, 16 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 18 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.1s InterpolantComputationTime, 1368 NumberOfCodeBlocks, 1368 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1352 ConstructedInterpolants, 0 QuantifiedInterpolants, 460910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 2696/5640 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...