/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/fibo_2calls_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:58:23,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:58:23,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:58:23,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:58:23,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:58:23,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:58:23,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:58:23,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:58:23,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:58:23,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:58:23,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:58:23,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:58:23,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:58:23,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:58:23,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:58:23,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:58:23,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:58:23,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:58:23,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:58:23,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:58:23,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:58:23,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:58:23,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:58:23,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:58:23,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:58:23,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:58:23,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:58:23,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:58:23,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:58:23,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:58:23,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:58:23,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:58:23,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:58:23,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:58:23,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:58:23,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:58:23,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:58:23,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:58:23,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:58:23,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:58:23,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:58:23,376 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 15:58:23,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:58:23,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:58:23,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:58:23,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:58:23,431 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:58:23,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:58:23,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:58:23,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:58:23,433 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:58:23,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:58:23,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:58:23,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:58:23,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:58:23,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:58:23,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:58:23,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:58:23,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:58:23,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:58:23,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:58:23,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:58:23,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:58:23,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:58:23,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:58:23,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:58:23,438 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 15:58:23,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:58:23,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:58:23,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:58:23,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:58:23,940 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:58:23,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-09-24 15:58:24,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/797e225fe/9a97fe7985eb466c96b909bff1dc666d/FLAG5183f6f1e [2020-09-24 15:58:24,586 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:58:24,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_5-2.c [2020-09-24 15:58:24,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/797e225fe/9a97fe7985eb466c96b909bff1dc666d/FLAG5183f6f1e [2020-09-24 15:58:24,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/797e225fe/9a97fe7985eb466c96b909bff1dc666d [2020-09-24 15:58:24,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:58:24,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:58:24,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:24,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:58:24,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:58:24,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:24" (1/1) ... [2020-09-24 15:58:24,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:24, skipping insertion in model container [2020-09-24 15:58:24,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:24" (1/1) ... [2020-09-24 15:58:24,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:58:25,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:58:25,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:25,227 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:58:25,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:25,264 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:58:25,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25 WrapperNode [2020-09-24 15:58:25,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:25,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:58:25,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:58:25,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:58:25,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (1/1) ... [2020-09-24 15:58:25,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:58:25,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:58:25,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:58:25,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:58:25,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (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 15:58:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:58:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:58:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 15:58:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 15:58:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:58:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:58:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:58:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 15:58:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 15:58:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:58:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:58:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:58:25,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:58:25,747 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:58:25,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:25 BoogieIcfgContainer [2020-09-24 15:58:25,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:58:25,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:58:25,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:58:25,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:58:25,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:58:24" (1/3) ... [2020-09-24 15:58:25,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:25, skipping insertion in model container [2020-09-24 15:58:25,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:25" (2/3) ... [2020-09-24 15:58:25,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:25, skipping insertion in model container [2020-09-24 15:58:25,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:25" (3/3) ... [2020-09-24 15:58:25,782 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-2.c [2020-09-24 15:58:25,807 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:58:25,817 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:58:25,851 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:58:25,878 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:58:25,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:58:25,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:58:25,879 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:58:25,879 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:58:25,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:58:25,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:58:25,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:58:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 15:58:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 15:58:25,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:25,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:25,908 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:25,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:25,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 15:58:25,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:25,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932208191] [2020-09-24 15:58:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 15:58:26,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:58:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:26,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:58:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:26,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:26,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:58:26,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:26,224 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 15:58:26,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932208191] [2020-09-24 15:58:26,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:58:26,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:58:26,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341744444] [2020-09-24 15:58:26,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:58:26,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:26,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:58:26,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:58:26,256 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 15:58:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:26,378 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 15:58:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:58:26,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 15:58:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:26,395 INFO L225 Difference]: With dead ends: 58 [2020-09-24 15:58:26,396 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 15:58:26,400 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 15:58:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 15:58:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 15:58:26,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 15:58:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 15:58:26,466 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 15:58:26,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:26,467 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 15:58:26,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:58:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 15:58:26,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 15:58:26,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:26,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:26,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:58:26,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:26,472 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 15:58:26,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:26,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321438145] [2020-09-24 15:58:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 15:58:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:26,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:26,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:26,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:26,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:26,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:26,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:26,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:26,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,565 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 15:58:26,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321438145] [2020-09-24 15:58:26,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:58:26,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:58:26,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401961325] [2020-09-24 15:58:26,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:58:26,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:26,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:58:26,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:58:26,570 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 15:58:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:26,657 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 15:58:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:58:26,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 15:58:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:26,660 INFO L225 Difference]: With dead ends: 50 [2020-09-24 15:58:26,660 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 15:58:26,662 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 15:58:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 15:58:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 15:58:26,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 15:58:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 15:58:26,672 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 15:58:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:26,673 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 15:58:26,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:58:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 15:58:26,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 15:58:26,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:26,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:26,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:58:26,676 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:26,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 15:58:26,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:26,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414596553] [2020-09-24 15:58:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,715 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 15:58:26,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:58:26,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:26,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:26,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 15:58:26,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:26,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:26,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:26,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:26,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 15:58:26,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:58:26,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 15:58:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:26,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:26,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:26,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:26,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 15:58:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:26,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:26,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:26,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:26,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:26,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:26,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:26,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:26,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:26,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:58:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:26,878 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 15:58:26,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414596553] [2020-09-24 15:58:26,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:26,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:58:26,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526356779] [2020-09-24 15:58:26,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:58:26,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:26,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:58:26,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:58:26,882 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-24 15:58:27,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:27,003 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-09-24 15:58:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:58:27,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 15:58:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:27,006 INFO L225 Difference]: With dead ends: 82 [2020-09-24 15:58:27,008 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 15:58:27,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:58:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 15:58:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 15:58:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 15:58:27,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-09-24 15:58:27,020 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-09-24 15:58:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:27,021 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-09-24 15:58:27,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:58:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-09-24 15:58:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 15:58:27,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:27,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:27,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:58:27,024 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:27,024 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-24 15:58:27,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:27,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280324297] [2020-09-24 15:58:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:58:27,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:58:27,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 15:58:27,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:27,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:27,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:27,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:58:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:58:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:27,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:27,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:58:27,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:58:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:27,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:58:27,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280324297] [2020-09-24 15:58:27,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:27,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:58:27,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795650285] [2020-09-24 15:58:27,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:58:27,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:27,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:58:27,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:58:27,217 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-09-24 15:58:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:27,365 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2020-09-24 15:58:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:58:27,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 15:58:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:27,369 INFO L225 Difference]: With dead ends: 60 [2020-09-24 15:58:27,369 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 15:58:27,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:58:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 15:58:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-09-24 15:58:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 15:58:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-09-24 15:58:27,382 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 34 [2020-09-24 15:58:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:27,383 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-09-24 15:58:27,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:58:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-09-24 15:58:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 15:58:27,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:27,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:27,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:58:27,386 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-09-24 15:58:27,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:27,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011846031] [2020-09-24 15:58:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:58:27,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 15:58:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,424 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:27,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:27,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 15:58:27,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:27,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 15:58:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 15:58:27,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:58:27,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 15:58:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:58:27,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 15:58:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,534 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:27,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:27,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:58:27,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:27,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 15:58:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:27,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:58:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 15:58:27,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011846031] [2020-09-24 15:58:27,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:27,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 15:58:27,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604342789] [2020-09-24 15:58:27,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:58:27,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:27,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:58:27,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:58:27,555 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 6 states. [2020-09-24 15:58:27,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:27,651 INFO L93 Difference]: Finished difference Result 100 states and 130 transitions. [2020-09-24 15:58:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:58:27,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 15:58:27,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:27,656 INFO L225 Difference]: With dead ends: 100 [2020-09-24 15:58:27,656 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 15:58:27,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:58:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 15:58:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 15:58:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 15:58:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2020-09-24 15:58:27,680 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 50 [2020-09-24 15:58:27,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:27,682 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2020-09-24 15:58:27,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:58:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2020-09-24 15:58:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 15:58:27,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:27,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:27,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:58:27,688 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:27,692 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-09-24 15:58:27,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:27,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004643255] [2020-09-24 15:58:27,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 15:58:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:58:27,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:58:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:27,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:58:27,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 15:58:27,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:58:27,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 15:58:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:27,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:27,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:27,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:27,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:27,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:27,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:27,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:27,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:27,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:27,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:27,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:27,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:27,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:27,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:27,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:58:27,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:27,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 15:58:28,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004643255] [2020-09-24 15:58:28,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:28,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:58:28,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451581022] [2020-09-24 15:58:28,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:58:28,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:28,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:58:28,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:58:28,043 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 9 states. [2020-09-24 15:58:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:28,193 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2020-09-24 15:58:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:58:28,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-24 15:58:28,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:28,195 INFO L225 Difference]: With dead ends: 108 [2020-09-24 15:58:28,195 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 15:58:28,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:58:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 15:58:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-24 15:58:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 15:58:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-24 15:58:28,220 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 51 [2020-09-24 15:58:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:28,221 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-24 15:58:28,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:58:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-24 15:58:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 15:58:28,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:28,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:28,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:58:28,227 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:28,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:28,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 15:58:28,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:28,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003908103] [2020-09-24 15:58:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 15:58:28,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:58:28,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:28,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:58:28,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:28,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:58:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:58:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:28,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:58:28,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:28,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:58:28,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:58:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:28,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:28,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:28,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:58:28,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:28,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:28,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 15:58:28,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003908103] [2020-09-24 15:58:28,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:28,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:58:28,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137241231] [2020-09-24 15:58:28,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:58:28,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:28,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:58:28,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:58:28,487 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 8 states. [2020-09-24 15:58:28,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:28,681 INFO L93 Difference]: Finished difference Result 82 states and 108 transitions. [2020-09-24 15:58:28,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:58:28,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-24 15:58:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:28,684 INFO L225 Difference]: With dead ends: 82 [2020-09-24 15:58:28,685 INFO L226 Difference]: Without dead ends: 76 [2020-09-24 15:58:28,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:58:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-24 15:58:28,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2020-09-24 15:58:28,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 15:58:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 93 transitions. [2020-09-24 15:58:28,718 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 93 transitions. Word has length 52 [2020-09-24 15:58:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:28,718 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 93 transitions. [2020-09-24 15:58:28,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:58:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 93 transitions. [2020-09-24 15:58:28,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 15:58:28,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:28,722 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:28,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:58:28,723 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:28,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:28,723 INFO L82 PathProgramCache]: Analyzing trace with hash -521446491, now seen corresponding path program 1 times [2020-09-24 15:58:28,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:28,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447183645] [2020-09-24 15:58:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 15:58:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:58:28,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 15:58:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:28,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:58:28,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 15:58:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 15:58:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 15:58:28,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:58:28,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:28,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 15:58:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:28,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:28,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:28,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:28,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:28,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:28,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:28,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:28,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:28,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:28,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:28,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:28,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 15:58:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:28,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:28,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:28,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:28,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:28,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:28,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:28,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 15:58:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 15:58:29,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447183645] [2020-09-24 15:58:29,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:29,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:58:29,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357594771] [2020-09-24 15:58:29,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:58:29,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:29,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:58:29,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:58:29,036 INFO L87 Difference]: Start difference. First operand 70 states and 93 transitions. Second operand 8 states. [2020-09-24 15:58:29,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:29,189 INFO L93 Difference]: Finished difference Result 145 states and 216 transitions. [2020-09-24 15:58:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:58:29,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 15:58:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:29,192 INFO L225 Difference]: With dead ends: 145 [2020-09-24 15:58:29,192 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 15:58:29,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:58:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 15:58:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2020-09-24 15:58:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 15:58:29,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2020-09-24 15:58:29,222 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 69 [2020-09-24 15:58:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:29,224 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2020-09-24 15:58:29,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:58:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2020-09-24 15:58:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 15:58:29,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:29,226 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:29,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:58:29,227 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:29,227 INFO L82 PathProgramCache]: Analyzing trace with hash -439633211, now seen corresponding path program 1 times [2020-09-24 15:58:29,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:29,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8273806] [2020-09-24 15:58:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:58:29,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 15:58:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:29,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:29,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:29,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 15:58:29,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:58:29,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:58:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:29,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:58:29,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:29,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:29,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:58:29,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:29,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:29,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:29,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:29,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:29,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:29,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:29,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:29,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:29,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:58:29,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 15:58:29,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8273806] [2020-09-24 15:58:29,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:29,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:58:29,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600129213] [2020-09-24 15:58:29,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:58:29,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:29,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:58:29,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:58:29,536 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand 9 states. [2020-09-24 15:58:29,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:29,745 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2020-09-24 15:58:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:58:29,745 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-24 15:58:29,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:29,748 INFO L225 Difference]: With dead ends: 153 [2020-09-24 15:58:29,748 INFO L226 Difference]: Without dead ends: 87 [2020-09-24 15:58:29,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:58:29,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-24 15:58:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-09-24 15:58:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 15:58:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 105 transitions. [2020-09-24 15:58:29,760 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 105 transitions. Word has length 70 [2020-09-24 15:58:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:29,761 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 105 transitions. [2020-09-24 15:58:29,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:58:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2020-09-24 15:58:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 15:58:29,763 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:29,763 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:29,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:58:29,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:29,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:29,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1951493560, now seen corresponding path program 1 times [2020-09-24 15:58:29,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:29,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012108077] [2020-09-24 15:58:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 15:58:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 15:58:29,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:58:29,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:58:29,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:29,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:58:29,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:58:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:29,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:29,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:29,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:58:29,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:29,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:58:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:29,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:29,998 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:29,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:29,999 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:29,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:29,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:29,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:30,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:30,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:58:30,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:30,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-24 15:58:30,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012108077] [2020-09-24 15:58:30,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:30,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:58:30,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883777216] [2020-09-24 15:58:30,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:58:30,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:30,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:58:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:58:30,065 INFO L87 Difference]: Start difference. First operand 81 states and 105 transitions. Second operand 9 states. [2020-09-24 15:58:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:30,269 INFO L93 Difference]: Finished difference Result 117 states and 164 transitions. [2020-09-24 15:58:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:58:30,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-24 15:58:30,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:30,272 INFO L225 Difference]: With dead ends: 117 [2020-09-24 15:58:30,273 INFO L226 Difference]: Without dead ends: 111 [2020-09-24 15:58:30,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:58:30,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-24 15:58:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2020-09-24 15:58:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-24 15:58:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2020-09-24 15:58:30,312 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 87 [2020-09-24 15:58:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:30,312 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2020-09-24 15:58:30,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:58:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2020-09-24 15:58:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 15:58:30,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:30,318 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:30,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:58:30,318 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:30,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1352793328, now seen corresponding path program 2 times [2020-09-24 15:58:30,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:30,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552303780] [2020-09-24 15:58:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,356 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 15:58:30,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:30,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:30,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 15:58:30,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:30,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:30,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 15:58:30,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:58:30,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 15:58:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:58:30,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:30,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 15:58:30,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:58:30,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:58:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:30,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:58:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:30,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:30,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:30,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:30,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:58:30,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:30,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:30,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:30,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:30,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:30,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:58:30,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 15:58:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:30,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 15:58:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:30,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:30,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:30,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:30,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:30,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:30,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:30,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:30,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 50 proven. 43 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-24 15:58:30,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552303780] [2020-09-24 15:58:30,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:30,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 15:58:30,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643527086] [2020-09-24 15:58:30,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:58:30,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:30,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:58:30,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:58:30,831 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand 10 states. [2020-09-24 15:58:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:31,090 INFO L93 Difference]: Finished difference Result 208 states and 332 transitions. [2020-09-24 15:58:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:58:31,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2020-09-24 15:58:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:31,093 INFO L225 Difference]: With dead ends: 208 [2020-09-24 15:58:31,093 INFO L226 Difference]: Without dead ends: 109 [2020-09-24 15:58:31,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:58:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-24 15:58:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2020-09-24 15:58:31,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-24 15:58:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2020-09-24 15:58:31,107 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 105 [2020-09-24 15:58:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:31,108 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2020-09-24 15:58:31,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:58:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2020-09-24 15:58:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 15:58:31,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:31,111 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:31,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:58:31,112 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:31,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:31,112 INFO L82 PathProgramCache]: Analyzing trace with hash -131074253, now seen corresponding path program 2 times [2020-09-24 15:58:31,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:31,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766240964] [2020-09-24 15:58:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 15:58:31,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:58:31,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:58:31,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:31,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 15:58:31,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:58:31,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:58:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 15:58:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:58:31,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 15:58:31,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:58:31,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:58:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:58:31,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:58:31,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:31,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:58:31,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:31,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:58:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:31,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:31,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:58:31,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:58:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,465 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:31,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 15:58:31,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:58:31,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:31,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:58:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:31,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:58:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:31,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:31,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:58:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:31,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:58:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:58:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:31,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 15:58:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:31,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:31,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:31,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:31,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:31,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:31,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:31,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:31,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:31,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 101 proven. 211 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-09-24 15:58:31,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766240964] [2020-09-24 15:58:31,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:31,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:58:31,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008097464] [2020-09-24 15:58:31,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:58:31,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:58:31,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:58:31,875 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 12 states. [2020-09-24 15:58:32,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:32,263 INFO L93 Difference]: Finished difference Result 228 states and 381 transitions. [2020-09-24 15:58:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:58:32,264 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-09-24 15:58:32,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:32,268 INFO L225 Difference]: With dead ends: 228 [2020-09-24 15:58:32,269 INFO L226 Difference]: Without dead ends: 138 [2020-09-24 15:58:32,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:58:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-24 15:58:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 127. [2020-09-24 15:58:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-09-24 15:58:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 179 transitions. [2020-09-24 15:58:32,294 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 179 transitions. Word has length 193 [2020-09-24 15:58:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:32,295 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 179 transitions. [2020-09-24 15:58:32,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:58:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 179 transitions. [2020-09-24 15:58:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 15:58:32,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:32,300 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:32,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:58:32,300 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash 235403762, now seen corresponding path program 3 times [2020-09-24 15:58:32,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:32,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313958563] [2020-09-24 15:58:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 15:58:32,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:58:32,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:58:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:32,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:32,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:32,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 15:58:32,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:58:32,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:58:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 15:58:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 15:58:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:58:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 15:58:32,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:58:32,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 15:58:32,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:58:32,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:32,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:58:32,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:58:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-24 15:58:32,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:32,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:58:32,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:58:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:32,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:32,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:32,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:32,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:58:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,760 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:32,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:32,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:58:32,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:32,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 15:58:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 15:58:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:58:32,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:58:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:32,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:32,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:58:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:58:32,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:58:32,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:58:32,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:32,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:32,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 15:58:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 15:58:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:58:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:58:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 15:58:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:58:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:58:32,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:32,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:32,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 15:58:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:32,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:32,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:32,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:32,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:32,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:32,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:32,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:58:32,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:32,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:32,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 96 proven. 192 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-09-24 15:58:33,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313958563] [2020-09-24 15:58:33,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:33,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 15:58:33,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809958861] [2020-09-24 15:58:33,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 15:58:33,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 15:58:33,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:58:33,084 INFO L87 Difference]: Start difference. First operand 127 states and 179 transitions. Second operand 14 states. [2020-09-24 15:58:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:33,721 INFO L93 Difference]: Finished difference Result 285 states and 508 transitions. [2020-09-24 15:58:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:58:33,722 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 175 [2020-09-24 15:58:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:33,726 INFO L225 Difference]: With dead ends: 285 [2020-09-24 15:58:33,726 INFO L226 Difference]: Without dead ends: 163 [2020-09-24 15:58:33,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:58:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-24 15:58:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 152. [2020-09-24 15:58:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 15:58:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2020-09-24 15:58:33,744 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 175 [2020-09-24 15:58:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:33,744 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2020-09-24 15:58:33,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 15:58:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2020-09-24 15:58:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-24 15:58:33,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:33,748 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:33,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:58:33,748 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:33,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 4 times [2020-09-24 15:58:33,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:33,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508473165] [2020-09-24 15:58:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:58:33,773 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:58:33,773 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:58:33,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:58:33,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:58:33 BoogieIcfgContainer [2020-09-24 15:58:33,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:58:33,813 INFO L168 Benchmark]: Toolchain (without parser) took 8857.46 ms. Allocated memory was 146.3 MB in the beginning and 362.3 MB in the end (delta: 216.0 MB). Free memory was 103.0 MB in the beginning and 184.5 MB in the end (delta: -81.5 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:58:33,814 INFO L168 Benchmark]: CDTParser took 1.74 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:58:33,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.88 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:58:33,816 INFO L168 Benchmark]: Boogie Preprocessor took 128.65 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 92.8 MB in the beginning and 181.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:58:33,816 INFO L168 Benchmark]: RCFGBuilder took 359.65 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 167.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:58:33,817 INFO L168 Benchmark]: TraceAbstraction took 8040.72 ms. Allocated memory was 202.9 MB in the beginning and 362.3 MB in the end (delta: 159.4 MB). Free memory was 166.6 MB in the beginning and 184.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 141.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:58:33,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 304.88 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.65 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 92.8 MB in the beginning and 181.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 359.65 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 167.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8040.72 ms. Allocated memory was 202.9 MB in the beginning and 362.3 MB in the end (delta: 159.4 MB). Free memory was 166.6 MB in the beginning and 184.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 141.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 39]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L36] int x = 5; [L37] CALL, EXPR fibo1(x) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND TRUE n < 1 [L9] return 0; [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND TRUE n < 1 [L19] return 0; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND FALSE !(n < 1) [L20] COND FALSE !(n == 1) [L23] CALL, EXPR fibo1(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo2(n-1) [L18] COND FALSE !(n < 1) [L20] COND TRUE n == 1 [L21] return 1; [L13] RET, EXPR fibo2(n-1) [L13] CALL, EXPR fibo2(n-2) [L18] COND TRUE n < 1 [L19] return 0; [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L23] RET, EXPR fibo1(n-1) [L23] CALL, EXPR fibo1(n-2) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L23] RET, EXPR fibo1(n-2) [L23] return fibo1(n-1) + fibo1(n-2); [L13] RET, EXPR fibo2(n-2) [L13] return fibo2(n-1) + fibo2(n-2); [L37] RET, EXPR fibo1(x) [L37] int result = fibo1(x); [L38] COND TRUE result == 5 [L39] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.9s, OverallIterations: 14, TraceHistogramMax: 11, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 544 SDtfs, 540 SDslu, 2405 SDs, 0 SdLazy, 1646 SolverSat, 165 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 376 GetRequests, 246 SyntacticMatches, 5 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 72 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1092 NumberOfCodeBlocks, 1092 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 939 ConstructedInterpolants, 0 QuantifiedInterpolants, 280569 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 982/1512 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...