/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:13:43,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:13:43,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:13:43,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:13:43,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:13:43,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:13:43,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:13:43,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:13:43,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:13:43,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:13:43,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:13:43,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:13:43,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:13:43,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:13:43,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:13:43,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:13:43,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:13:43,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:13:43,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:13:43,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:13:43,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:13:43,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:13:43,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:13:43,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:13:43,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:13:43,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:13:43,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:13:43,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:13:43,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:13:43,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:13:43,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:13:43,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:13:43,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:13:43,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:13:43,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:13:43,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:13:43,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:13:43,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:13:43,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:13:43,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:13:43,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:13:43,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:13:43,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:13:43,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:13:43,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:13:43,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:13:43,332 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:13:43,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:13:43,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:13:43,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:13:43,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:13:43,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:13:43,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:13:43,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:13:43,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:13:43,333 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:13:43,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:13:43,334 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:13:43,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:13:43,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:13:43,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:13:43,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:13:43,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:13:43,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:13:43,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:13:43,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:13:43,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:13:43,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:13:43,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:13:43,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:13:43,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:13:43,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:13:43,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:13:43,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:13:43,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:13:43,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:13:43,636 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:13:43,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-10-12 18:13:43,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/525ea8523/489069fdb1ed4be5871b6048491b694c/FLAG533ab7ae1 [2020-10-12 18:13:44,122 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:13:44,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-10-12 18:13:44,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/525ea8523/489069fdb1ed4be5871b6048491b694c/FLAG533ab7ae1 [2020-10-12 18:13:44,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/525ea8523/489069fdb1ed4be5871b6048491b694c [2020-10-12 18:13:44,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:13:44,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:13:44,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:13:44,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:13:44,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:13:44,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc3fb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44, skipping insertion in model container [2020-10-12 18:13:44,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:13:44,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:13:44,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:13:44,766 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:13:44,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:13:44,795 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:13:44,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44 WrapperNode [2020-10-12 18:13:44,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:13:44,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:13:44,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:13:44,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:13:44,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... [2020-10-12 18:13:44,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:13:44,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:13:44,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:13:44,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:13:44,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:13:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:13:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:13:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-10-12 18:13:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-10-12 18:13:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-10-12 18:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-10-12 18:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:13:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:13:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:13:45,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:13:45,157 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 18:13:45,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:13:45 BoogieIcfgContainer [2020-10-12 18:13:45,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:13:45,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:13:45,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:13:45,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:13:45,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:13:44" (1/3) ... [2020-10-12 18:13:45,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee71e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:13:45, skipping insertion in model container [2020-10-12 18:13:45,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:13:44" (2/3) ... [2020-10-12 18:13:45,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee71e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:13:45, skipping insertion in model container [2020-10-12 18:13:45,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:13:45" (3/3) ... [2020-10-12 18:13:45,169 INFO L109 eAbstractionObserver]: Analyzing ICFG EvenOdd01-1.c [2020-10-12 18:13:45,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:13:45,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:13:45,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:13:45,225 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:13:45,225 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:13:45,226 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:13:45,226 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:13:45,226 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:13:45,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:13:45,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:13:45,226 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:13:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-12 18:13:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 18:13:45,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:45,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:45,263 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:45,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:45,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2122072279, now seen corresponding path program 1 times [2020-10-12 18:13:45,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:45,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915946940] [2020-10-12 18:13:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:45,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:45,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:13:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-12 18:13:45,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:13:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:45,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:45,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:45,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:45,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:13:45,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:13:45,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:45,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:45,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:45,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:45,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 18:13:45,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:13:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:45,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:13:45,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915946940] [2020-10-12 18:13:45,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:13:45,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:13:45,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099776708] [2020-10-12 18:13:45,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:13:45,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:13:45,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:13:45,894 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-10-12 18:13:46,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:46,018 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-10-12 18:13:46,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:13:46,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-12 18:13:46,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:46,032 INFO L225 Difference]: With dead ends: 41 [2020-10-12 18:13:46,032 INFO L226 Difference]: Without dead ends: 27 [2020-10-12 18:13:46,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:13:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-12 18:13:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-12 18:13:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-12 18:13:46,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-10-12 18:13:46,077 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2020-10-12 18:13:46,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:46,078 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-10-12 18:13:46,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:13:46,078 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-10-12 18:13:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 18:13:46,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:46,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:46,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:13:46,081 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:46,081 INFO L82 PathProgramCache]: Analyzing trace with hash -612070348, now seen corresponding path program 1 times [2020-10-12 18:13:46,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:46,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131396209] [2020-10-12 18:13:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 18:13:46,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:46,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 18:13:46,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:13:46,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:13:46,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:46,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:46,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:13:46,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:46,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:13:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:46,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:46,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 18:13:46,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:13:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-12 18:13:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:13:46,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131396209] [2020-10-12 18:13:46,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:13:46,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:13:46,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337409645] [2020-10-12 18:13:46,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:13:46,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:46,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:13:46,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:13:46,491 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 6 states. [2020-10-12 18:13:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:46,591 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-10-12 18:13:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:13:46,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-12 18:13:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:46,593 INFO L225 Difference]: With dead ends: 33 [2020-10-12 18:13:46,593 INFO L226 Difference]: Without dead ends: 29 [2020-10-12 18:13:46,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:13:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-12 18:13:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-10-12 18:13:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-12 18:13:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-10-12 18:13:46,602 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 15 [2020-10-12 18:13:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:46,603 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-10-12 18:13:46,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:13:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-10-12 18:13:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 18:13:46,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:46,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:46,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:13:46,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:46,605 INFO L82 PathProgramCache]: Analyzing trace with hash -592576498, now seen corresponding path program 1 times [2020-10-12 18:13:46,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:46,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156721201] [2020-10-12 18:13:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 18:13:46,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:46,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 18:13:46,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:46,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:46,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:46,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:46,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:46,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:46,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:46,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:46,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:46,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:46,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:46,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:46,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 18:13:46,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:13:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:47,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:13:47,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:13:47,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156721201] [2020-10-12 18:13:47,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:13:47,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:13:47,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876080271] [2020-10-12 18:13:47,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:13:47,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:47,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:13:47,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:13:47,076 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 9 states. [2020-10-12 18:13:47,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:47,201 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-12 18:13:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:13:47,202 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-12 18:13:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:47,204 INFO L225 Difference]: With dead ends: 38 [2020-10-12 18:13:47,204 INFO L226 Difference]: Without dead ends: 34 [2020-10-12 18:13:47,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:13:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-12 18:13:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-10-12 18:13:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-12 18:13:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-12 18:13:47,213 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 21 [2020-10-12 18:13:47,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:47,213 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-12 18:13:47,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:13:47,214 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-12 18:13:47,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-12 18:13:47,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:47,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:47,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:13:47,216 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:47,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1306118367, now seen corresponding path program 1 times [2020-10-12 18:13:47,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:47,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082653738] [2020-10-12 18:13:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:13:47,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 18:13:47,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:47,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:47,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:13:47,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:47,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:47,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-12 18:13:47,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:13:47,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:13:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:13:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:13:47,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:13:47,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082653738] [2020-10-12 18:13:47,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:13:47,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:13:47,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982305539] [2020-10-12 18:13:47,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:13:47,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:47,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:13:47,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:13:47,506 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 9 states. [2020-10-12 18:13:47,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:47,642 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-10-12 18:13:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:13:47,642 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-12 18:13:47,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:47,644 INFO L225 Difference]: With dead ends: 39 [2020-10-12 18:13:47,644 INFO L226 Difference]: Without dead ends: 35 [2020-10-12 18:13:47,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:13:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-12 18:13:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2020-10-12 18:13:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-12 18:13:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-12 18:13:47,651 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-10-12 18:13:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:47,652 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-12 18:13:47,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:13:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-12 18:13:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 18:13:47,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:47,653 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] [2020-10-12 18:13:47,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:13:47,654 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1571291849, now seen corresponding path program 1 times [2020-10-12 18:13:47,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:47,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437324338] [2020-10-12 18:13:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 18:13:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 18:13:47,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:13:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:47,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:47,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:47,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:47,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:47,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:13:48,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:48,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 18:13:48,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:13:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:13:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:48,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:13:48,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 18:13:48,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437324338] [2020-10-12 18:13:48,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:48,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:13:48,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650676400] [2020-10-12 18:13:48,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:13:48,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:48,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:13:48,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:13:48,251 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 11 states. [2020-10-12 18:13:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:48,453 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2020-10-12 18:13:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:13:48,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-12 18:13:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:48,455 INFO L225 Difference]: With dead ends: 47 [2020-10-12 18:13:48,455 INFO L226 Difference]: Without dead ends: 43 [2020-10-12 18:13:48,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:13:48,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-12 18:13:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2020-10-12 18:13:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-12 18:13:48,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-12 18:13:48,463 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 28 [2020-10-12 18:13:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:48,463 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-12 18:13:48,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:13:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-12 18:13:48,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 18:13:48,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:48,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:48,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:13:48,465 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:48,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:48,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1610221656, now seen corresponding path program 1 times [2020-10-12 18:13:48,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:48,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516605226] [2020-10-12 18:13:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 18:13:48,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 18:13:48,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 18:13:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:48,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:48,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:48,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:13:48,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 18:13:48,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:13:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:13:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:13:48,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:13:48,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:13:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 18:13:48,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516605226] [2020-10-12 18:13:48,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:48,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:13:48,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907321171] [2020-10-12 18:13:48,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:13:48,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:48,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:13:48,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:13:48,951 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 11 states. [2020-10-12 18:13:49,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:49,135 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-12 18:13:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:13:49,136 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-12 18:13:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:49,137 INFO L225 Difference]: With dead ends: 45 [2020-10-12 18:13:49,137 INFO L226 Difference]: Without dead ends: 41 [2020-10-12 18:13:49,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:13:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-12 18:13:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2020-10-12 18:13:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-12 18:13:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-12 18:13:49,144 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 29 [2020-10-12 18:13:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:49,144 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-12 18:13:49,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:13:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-12 18:13:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-12 18:13:49,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:49,146 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 18:13:49,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:13:49,146 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:49,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:49,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1278768946, now seen corresponding path program 1 times [2020-10-12 18:13:49,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:49,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814721999] [2020-10-12 18:13:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 18:13:49,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-12 18:13:49,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:13:49,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:49,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:49,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:49,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:13:49,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 18:13:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:13:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:13:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:49,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:13:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 18:13:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:49,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:13:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:49,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:13:49,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:49,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:49,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:13:49,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 18:13:49,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814721999] [2020-10-12 18:13:49,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:49,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 18:13:49,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281146021] [2020-10-12 18:13:49,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:13:49,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:49,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:13:49,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:13:49,889 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 13 states. [2020-10-12 18:13:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:50,221 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-10-12 18:13:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:13:50,221 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2020-10-12 18:13:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:50,223 INFO L225 Difference]: With dead ends: 56 [2020-10-12 18:13:50,223 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 18:13:50,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:13:50,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 18:13:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2020-10-12 18:13:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-12 18:13:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-12 18:13:50,230 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 35 [2020-10-12 18:13:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:50,230 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-12 18:13:50,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:13:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-12 18:13:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-12 18:13:50,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:50,232 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 18:13:50,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:13:50,232 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:50,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1417612799, now seen corresponding path program 1 times [2020-10-12 18:13:50,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:50,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637681370] [2020-10-12 18:13:50,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:13:50,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 18:13:50,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:13:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:50,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:50,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:50,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:13:50,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:13:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:13:50,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:13:50,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:50,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:13:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:13:50,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:50,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:50,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:50,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:13:50,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:13:50,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637681370] [2020-10-12 18:13:50,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:50,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 18:13:50,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277818699] [2020-10-12 18:13:50,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:13:50,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:50,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:13:50,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:13:50,877 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 13 states. [2020-10-12 18:13:51,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:51,195 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-12 18:13:51,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:13:51,196 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2020-10-12 18:13:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:51,197 INFO L225 Difference]: With dead ends: 51 [2020-10-12 18:13:51,197 INFO L226 Difference]: Without dead ends: 47 [2020-10-12 18:13:51,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:13:51,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-12 18:13:51,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2020-10-12 18:13:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-12 18:13:51,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-12 18:13:51,204 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 36 [2020-10-12 18:13:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:51,204 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-12 18:13:51,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:13:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-12 18:13:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 18:13:51,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:51,206 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 18:13:51,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:13:51,206 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:51,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:51,207 INFO L82 PathProgramCache]: Analyzing trace with hash 915642857, now seen corresponding path program 2 times [2020-10-12 18:13:51,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:51,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967700620] [2020-10-12 18:13:51,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:51,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:51,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:13:51,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:51,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:51,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:51,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:51,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:13:51,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:51,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:51,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:13:51,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:51,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 18:13:51,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 18:13:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:13:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:51,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:51,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:13:51,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:13:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:51,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:52,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:13:52,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:52,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 18:13:52,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:52,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:52,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:52,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:13:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:52,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:52,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:52,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:13:52,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:52,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:52,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:52,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:52,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:13:52,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:52,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:52,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 18:13:52,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967700620] [2020-10-12 18:13:52,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:52,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:13:52,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862065415] [2020-10-12 18:13:52,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:13:52,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:52,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:13:52,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:13:52,266 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 15 states. [2020-10-12 18:13:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:52,552 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2020-10-12 18:13:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:13:52,553 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-12 18:13:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:52,554 INFO L225 Difference]: With dead ends: 65 [2020-10-12 18:13:52,554 INFO L226 Difference]: Without dead ends: 61 [2020-10-12 18:13:52,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:13:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-12 18:13:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2020-10-12 18:13:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-12 18:13:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-12 18:13:52,562 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 42 [2020-10-12 18:13:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:52,562 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-12 18:13:52,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:13:52,562 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-12 18:13:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 18:13:52,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:52,563 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:52,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:13:52,564 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1668529660, now seen corresponding path program 2 times [2020-10-12 18:13:52,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:52,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872793777] [2020-10-12 18:13:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:13:52,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-12 18:13:52,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:13:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 18:13:52,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:52,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:52,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:52,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:52,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:52,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:13:52,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:52,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:52,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:52,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:52,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:53,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:13:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:53,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:53,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:13:53,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 18:13:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:13:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:53,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:53,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:13:53,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:13:53,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:13:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:53,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:53,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:53,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:13:53,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:13:53,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:53,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:53,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:53,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:53,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:53,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:13:53,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 18:13:53,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872793777] [2020-10-12 18:13:53,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:53,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:13:53,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31735199] [2020-10-12 18:13:53,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:13:53,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:53,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:13:53,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:13:53,497 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 15 states. [2020-10-12 18:13:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:53,893 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-10-12 18:13:53,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:13:53,893 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2020-10-12 18:13:53,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:53,894 INFO L225 Difference]: With dead ends: 57 [2020-10-12 18:13:53,895 INFO L226 Difference]: Without dead ends: 53 [2020-10-12 18:13:53,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:13:53,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-12 18:13:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39. [2020-10-12 18:13:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-12 18:13:53,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-12 18:13:53,900 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 43 [2020-10-12 18:13:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:53,901 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-12 18:13:53,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:13:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-12 18:13:53,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 18:13:53,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:53,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:53,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:13:53,902 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:53,903 INFO L82 PathProgramCache]: Analyzing trace with hash -742291498, now seen corresponding path program 2 times [2020-10-12 18:13:53,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:53,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079074173] [2020-10-12 18:13:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:53,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:53,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:13:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:13:54,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:13:54,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-12 18:13:54,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:13:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:13:54,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:13:54,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:54,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 18:13:54,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:13:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:13:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:13:54,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 18:13:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:13:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:54,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:54,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:13:54,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 18:13:54,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:13:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:54,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:54,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:55,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:55,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:55,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:55,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 18:13:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:55,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:55,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:55,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:55,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:13:55,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-12 18:13:55,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079074173] [2020-10-12 18:13:55,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:55,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:13:55,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145454219] [2020-10-12 18:13:55,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:13:55,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:55,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:13:55,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:13:55,215 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 17 states. [2020-10-12 18:13:55,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:55,702 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2020-10-12 18:13:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:13:55,703 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-10-12 18:13:55,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:55,704 INFO L225 Difference]: With dead ends: 74 [2020-10-12 18:13:55,704 INFO L226 Difference]: Without dead ends: 70 [2020-10-12 18:13:55,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:13:55,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-12 18:13:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 42. [2020-10-12 18:13:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-12 18:13:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-12 18:13:55,717 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 49 [2020-10-12 18:13:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:55,717 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-12 18:13:55,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:13:55,718 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-12 18:13:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 18:13:55,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:55,718 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 18:13:55,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:13:55,719 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:55,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:55,719 INFO L82 PathProgramCache]: Analyzing trace with hash -150927713, now seen corresponding path program 2 times [2020-10-12 18:13:55,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:55,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802219494] [2020-10-12 18:13:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:55,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:55,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 18:13:55,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 18:13:55,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:13:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:55,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:13:55,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:56,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:13:56,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 18:13:56,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 18:13:56,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:13:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:13:56,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:13:56,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 18:13:56,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:13:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:13:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:13:56,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:13:56,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:56,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:13:56,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:13:56,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:13:56,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:56,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:13:56,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:13:56,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:13:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:13:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:56,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:56,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:56,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:13:56,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:56,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:13:56,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:56,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:13:56,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 18:13:56,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802219494] [2020-10-12 18:13:56,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:56,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:13:56,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276220109] [2020-10-12 18:13:56,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:13:56,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:13:56,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:13:56,818 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 17 states. [2020-10-12 18:13:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:57,316 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-10-12 18:13:57,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:13:57,317 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 50 [2020-10-12 18:13:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:57,318 INFO L225 Difference]: With dead ends: 63 [2020-10-12 18:13:57,318 INFO L226 Difference]: Without dead ends: 59 [2020-10-12 18:13:57,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:13:57,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-12 18:13:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2020-10-12 18:13:57,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-12 18:13:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-12 18:13:57,325 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 50 [2020-10-12 18:13:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:57,325 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-12 18:13:57,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:13:57,325 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-12 18:13:57,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:13:57,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:57,326 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:57,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:13:57,327 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:57,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1681931127, now seen corresponding path program 3 times [2020-10-12 18:13:57,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:57,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657878778] [2020-10-12 18:13:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:57,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:57,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:57,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:13:57,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 18:13:57,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:13:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:13:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:57,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:57,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:57,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:57,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:57,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:57,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:13:58,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-12 18:13:58,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 18:13:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:13:58,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:13:58,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-12 18:13:58,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:13:58,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:13:58,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:58,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:13:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:13:58,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 18:13:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:13:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:13:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:58,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:13:58,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:13:58,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:13:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:13:58,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:58,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:13:58,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:13:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:13:58,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:13:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:13:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:13:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:13:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:13:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:13:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:13:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 18:13:58,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657878778] [2020-10-12 18:13:58,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:13:58,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 18:13:58,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413255289] [2020-10-12 18:13:58,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:13:58,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:13:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:13:58,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:13:58,848 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 19 states. [2020-10-12 18:13:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:13:59,391 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2020-10-12 18:13:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:13:59,392 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 56 [2020-10-12 18:13:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:13:59,393 INFO L225 Difference]: With dead ends: 83 [2020-10-12 18:13:59,393 INFO L226 Difference]: Without dead ends: 79 [2020-10-12 18:13:59,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:13:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-12 18:13:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 45. [2020-10-12 18:13:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-12 18:13:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-10-12 18:13:59,406 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 56 [2020-10-12 18:13:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:13:59,407 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-10-12 18:13:59,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:13:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-10-12 18:13:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 18:13:59,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:13:59,410 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:13:59,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:13:59,410 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:13:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:13:59,411 INFO L82 PathProgramCache]: Analyzing trace with hash -308892384, now seen corresponding path program 3 times [2020-10-12 18:13:59,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:13:59,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546429383] [2020-10-12 18:13:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:13:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:59,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:59,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:59,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 18:13:59,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-12 18:13:59,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:13:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:13:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 18:13:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:13:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:13:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:13:59,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:13:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:13:59,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:13:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:13:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:13:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:13:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:13:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:13:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:13:59,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:13:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:13:59,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 18:14:00,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 18:14:00,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 18:14:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:14:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:00,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 18:14:00,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 18:14:00,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:14:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:00,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:14:00,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 18:14:00,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:14:00,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:14:00,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 18:14:00,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:14:00,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:00,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:00,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:14:00,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 18:14:00,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:14:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:00,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:00,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:14:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:14:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:14:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:01,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:01,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:01,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:14:01,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:14:01,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:01,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:14:01,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-12 18:14:01,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546429383] [2020-10-12 18:14:01,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:01,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 18:14:01,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336167710] [2020-10-12 18:14:01,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:14:01,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:01,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:14:01,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:14:01,097 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 19 states. [2020-10-12 18:14:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:01,733 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-10-12 18:14:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:14:01,734 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2020-10-12 18:14:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:01,735 INFO L225 Difference]: With dead ends: 69 [2020-10-12 18:14:01,735 INFO L226 Difference]: Without dead ends: 65 [2020-10-12 18:14:01,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:14:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-12 18:14:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2020-10-12 18:14:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-12 18:14:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-10-12 18:14:01,742 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 57 [2020-10-12 18:14:01,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:01,743 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-10-12 18:14:01,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:14:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-10-12 18:14:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 18:14:01,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:01,744 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:01,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:14:01,745 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:01,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1552822778, now seen corresponding path program 3 times [2020-10-12 18:14:01,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:01,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495708082] [2020-10-12 18:14:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:01,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:02,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:14:02,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-12 18:14:02,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:14:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:02,309 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2020-10-12 18:14:02,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:02,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:02,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:02,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:14:02,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:02,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:02,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:02,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 18:14:02,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:02,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:02,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:03,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 18:14:03,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:03,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:03,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-12 18:14:03,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:03,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:03,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 18:14:03,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:03,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:03,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:14:03,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:03,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:03,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:03,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:03,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:14:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:03,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:03,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:03,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:14:03,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 18:14:03,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495708082] [2020-10-12 18:14:03,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:03,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 18:14:03,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269215854] [2020-10-12 18:14:03,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 18:14:03,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:03,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 18:14:03,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:14:03,919 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 21 states. [2020-10-12 18:14:04,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:04,676 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2020-10-12 18:14:04,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:14:04,676 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 63 [2020-10-12 18:14:04,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:04,677 INFO L225 Difference]: With dead ends: 92 [2020-10-12 18:14:04,677 INFO L226 Difference]: Without dead ends: 88 [2020-10-12 18:14:04,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:14:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-12 18:14:04,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 48. [2020-10-12 18:14:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 18:14:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-12 18:14:04,691 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 63 [2020-10-12 18:14:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:04,691 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-12 18:14:04,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 18:14:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-12 18:14:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 18:14:04,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:04,692 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:04,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:14:04,692 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1668346559, now seen corresponding path program 3 times [2020-10-12 18:14:04,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:04,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408171371] [2020-10-12 18:14:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:04,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-12 18:14:05,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 18:14:05,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:14:05,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:05,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:05,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:05,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:14:05,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 18:14:05,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 18:14:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:14:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 18:14:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 18:14:05,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:14:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:05,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 18:14:05,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-12 18:14:05,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:14:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:05,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:05,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:05,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:05,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:14:05,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 18:14:05,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:05,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:14:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:06,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:06,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:06,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:14:06,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:06,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 18:14:06,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:14:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 18:14:06,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:06,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:06,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:06,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:14:06,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:14:06,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:14:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:06,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:06,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:06,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:06,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:14:06,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:14:06,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:14:06,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:06,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:06,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:06,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:06,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:14:06,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:14:06,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:14:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 18:14:06,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408171371] [2020-10-12 18:14:06,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:06,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 18:14:06,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785465223] [2020-10-12 18:14:06,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 18:14:06,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:06,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 18:14:06,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:14:06,491 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 21 states. [2020-10-12 18:14:07,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:07,366 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-10-12 18:14:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:14:07,367 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 64 [2020-10-12 18:14:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:07,368 INFO L225 Difference]: With dead ends: 75 [2020-10-12 18:14:07,368 INFO L226 Difference]: Without dead ends: 71 [2020-10-12 18:14:07,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 18:14:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-12 18:14:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 48. [2020-10-12 18:14:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 18:14:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-12 18:14:07,378 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 64 [2020-10-12 18:14:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:07,380 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-12 18:14:07,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 18:14:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-12 18:14:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-12 18:14:07,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:07,386 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:07,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:14:07,387 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:07,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:07,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1424868009, now seen corresponding path program 4 times [2020-10-12 18:14:07,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:07,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650889333] [2020-10-12 18:14:07,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:07,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:07,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:07,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:07,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 18:14:07,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:07,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-10-12 18:14:07,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:07,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:07,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:07,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:14:07,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:08,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:08,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:08,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:08,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:08,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:08,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:08,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:08,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:08,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:08,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:08,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:08,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 18:14:08,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 18:14:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:08,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:08,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:08,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:08,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:08,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:08,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-12 18:14:08,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:08,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:08,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:08,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:08,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:09,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-12 18:14:09,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:09,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:09,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:09,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:09,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-12 18:14:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:09,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:09,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:09,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 18:14:09,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:09,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:09,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 18:14:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:09,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:09,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:09,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 18:14:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:09,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:09,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:14:09,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:09,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:09,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:10,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:10,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:10,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:10,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:14:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-12 18:14:10,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650889333] [2020-10-12 18:14:10,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:10,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-12 18:14:10,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358556659] [2020-10-12 18:14:10,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 18:14:10,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:10,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 18:14:10,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2020-10-12 18:14:10,256 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 24 states. [2020-10-12 18:14:11,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:11,267 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-10-12 18:14:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:14:11,269 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 70 [2020-10-12 18:14:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:11,270 INFO L225 Difference]: With dead ends: 101 [2020-10-12 18:14:11,270 INFO L226 Difference]: Without dead ends: 48 [2020-10-12 18:14:11,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=1516, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 18:14:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-12 18:14:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-12 18:14:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 18:14:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-12 18:14:11,281 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 70 [2020-10-12 18:14:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:11,281 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-12 18:14:11,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 18:14:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-12 18:14:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-12 18:14:11,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:11,282 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:11,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:14:11,283 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:11,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:11,283 INFO L82 PathProgramCache]: Analyzing trace with hash 353359300, now seen corresponding path program 4 times [2020-10-12 18:14:11,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:11,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448811277] [2020-10-12 18:14:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:11,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:11,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:11,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 18:14:11,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:11,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-12 18:14:11,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:11,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:11,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:11,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 18:14:11,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:11,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:11,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:11,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:11,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:11,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:11,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:12,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:12,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 18:14:12,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:12,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-12 18:14:12,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 18:14:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:14:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:12,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:12,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:14:12,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 18:14:12,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:14:12,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:12,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:12,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:12,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 18:14:12,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:14:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:12,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:12,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:12,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 18:14:12,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:12,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 18:14:12,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:12,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:14:12,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:12,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:13,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:14:13,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 18:14:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:14:13,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:13,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:13,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:13,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:13,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:14:13,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:13,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 18:14:13,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:14:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:14:13,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:14:13,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:13,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:13,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:14:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:13,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:13,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:13,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:13,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:14:13,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:13,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:14:13,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:13,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:14:13,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:13,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:13,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:14:13,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:13,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:14:13,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:13,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:13,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:14:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-12 18:14:13,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448811277] [2020-10-12 18:14:13,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:13,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 18:14:13,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097163178] [2020-10-12 18:14:13,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 18:14:13,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:13,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 18:14:13,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:14:13,649 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 23 states. [2020-10-12 18:14:14,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:14,529 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2020-10-12 18:14:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:14:14,530 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-10-12 18:14:14,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:14,531 INFO L225 Difference]: With dead ends: 78 [2020-10-12 18:14:14,531 INFO L226 Difference]: Without dead ends: 74 [2020-10-12 18:14:14,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=1449, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:14:14,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-12 18:14:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 51. [2020-10-12 18:14:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-12 18:14:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-10-12 18:14:14,539 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 71 [2020-10-12 18:14:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:14,540 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-10-12 18:14:14,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 18:14:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-10-12 18:14:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 18:14:14,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:14,542 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:14,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:14:14,542 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:14,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:14,542 INFO L82 PathProgramCache]: Analyzing trace with hash -253004386, now seen corresponding path program 4 times [2020-10-12 18:14:14,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:14,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265095090] [2020-10-12 18:14:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:14,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:14,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:14:15,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 18:14:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:15,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:15,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:15,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:15,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:15,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:14:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-12 18:14:15,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-12 18:14:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:14:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:15,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:15,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:15,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:15,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:15,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:15,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:15,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:15,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:15,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:16,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:16,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 18:14:16,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:16,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:16,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:16,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:14:16,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:16,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:16,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:16,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:16,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:16,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:16,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:16,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:14:16,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:16,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:16,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:16,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-12 18:14:16,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265095090] [2020-10-12 18:14:16,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:16,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 18:14:16,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475107648] [2020-10-12 18:14:16,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:14:16,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:16,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:14:16,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:14:16,818 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 25 states. [2020-10-12 18:14:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:17,817 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2020-10-12 18:14:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 18:14:17,819 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 77 [2020-10-12 18:14:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:17,820 INFO L225 Difference]: With dead ends: 84 [2020-10-12 18:14:17,820 INFO L226 Difference]: Without dead ends: 80 [2020-10-12 18:14:17,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=1769, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:14:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-12 18:14:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 54. [2020-10-12 18:14:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 18:14:17,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-12 18:14:17,826 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 77 [2020-10-12 18:14:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:17,826 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-12 18:14:17,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:14:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-12 18:14:17,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:14:17,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:17,827 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:17,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 18:14:17,828 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:17,828 INFO L82 PathProgramCache]: Analyzing trace with hash 462698472, now seen corresponding path program 5 times [2020-10-12 18:14:17,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:17,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097816607] [2020-10-12 18:14:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 18:14:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:18,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:18,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:18,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:18,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:18,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:18,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:18,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:18,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 18:14:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:19,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:19,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 18:14:19,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:19,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:19,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:19,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 18:14:19,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:19,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:19,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 18:14:19,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-12 18:14:19,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:19,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:14:19,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:19,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:19,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:19,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 18:14:19,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-12 18:14:19,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:14:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:19,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:19,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 18:14:20,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 18:14:20,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:14:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:14:20,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:14:20,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:20,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 18:14:20,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 18:14:20,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:14:20,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:20,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:14:20,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:20,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:14:20,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:14:20,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:14:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:20,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 18:14:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:14:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:20,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:14:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:14:20,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:14:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 3 proven. 79 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-12 18:14:20,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097816607] [2020-10-12 18:14:20,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:20,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-12 18:14:20,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436699516] [2020-10-12 18:14:20,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:14:20,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:20,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:14:20,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=698, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:14:20,689 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 28 states. [2020-10-12 18:14:21,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:21,869 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2020-10-12 18:14:21,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 18:14:21,869 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 85 [2020-10-12 18:14:21,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:21,871 INFO L225 Difference]: With dead ends: 90 [2020-10-12 18:14:21,871 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 18:14:21,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=156, Invalid=2196, Unknown=0, NotChecked=0, Total=2352 [2020-10-12 18:14:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 18:14:21,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-12 18:14:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 18:14:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-12 18:14:21,880 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-12 18:14:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:21,880 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-12 18:14:21,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:14:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-12 18:14:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 18:14:21,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:21,881 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:21,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 18:14:21,882 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:21,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:21,882 INFO L82 PathProgramCache]: Analyzing trace with hash -668052798, now seen corresponding path program 5 times [2020-10-12 18:14:21,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:21,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786670437] [2020-10-12 18:14:21,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:21,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:21,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 18:14:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:22,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:22,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:22,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:22,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:22,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:22,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:22,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:22,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:22,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-12 18:14:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:14:22,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:22,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:14:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:14:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:23,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:23,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:23,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 18:14:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:23,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:24,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 18:14:24,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:24,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:14:24,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:24,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:24,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:24,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:24,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:24,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:24,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:14:24,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:24,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-12 18:14:24,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786670437] [2020-10-12 18:14:24,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:24,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 18:14:24,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670401890] [2020-10-12 18:14:24,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 18:14:24,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:24,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 18:14:24,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:14:24,935 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 29 states. [2020-10-12 18:14:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:26,274 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-12 18:14:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:14:26,275 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 91 [2020-10-12 18:14:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:26,276 INFO L225 Difference]: With dead ends: 64 [2020-10-12 18:14:26,276 INFO L226 Difference]: Without dead ends: 60 [2020-10-12 18:14:26,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=147, Invalid=2505, Unknown=0, NotChecked=0, Total=2652 [2020-10-12 18:14:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-12 18:14:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-12 18:14:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-12 18:14:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-12 18:14:26,282 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 91 [2020-10-12 18:14:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:26,283 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-12 18:14:26,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 18:14:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-12 18:14:26,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 18:14:26,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:26,284 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:26,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 18:14:26,285 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:26,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:26,285 INFO L82 PathProgramCache]: Analyzing trace with hash 850643302, now seen corresponding path program 6 times [2020-10-12 18:14:26,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:26,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875809759] [2020-10-12 18:14:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:26,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:26,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 18:14:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:26,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:26,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:26,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:26,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:26,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:26,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:27,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:27,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:14:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:27,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:14:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:14:28,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:28,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:14:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:14:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:28,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:28,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:29,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:14:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:29,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:14:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:29,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:29,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:29,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:29,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:29,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:29,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:29,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:29,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:30,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:30,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 18:14:30,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:30,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 18:14:30,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:30,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:30,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 18:14:30,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:30,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:30,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:30,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:30,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:14:30,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:30,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:30,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:30,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:30,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:14:30,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-12 18:14:31,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875809759] [2020-10-12 18:14:31,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:31,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 18:14:31,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882523640] [2020-10-12 18:14:31,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 18:14:31,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:31,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 18:14:31,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 18:14:31,129 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 33 states. [2020-10-12 18:14:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:32,802 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-12 18:14:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 18:14:32,805 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 105 [2020-10-12 18:14:32,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:32,805 INFO L225 Difference]: With dead ends: 70 [2020-10-12 18:14:32,806 INFO L226 Difference]: Without dead ends: 66 [2020-10-12 18:14:32,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=171, Invalid=3369, Unknown=0, NotChecked=0, Total=3540 [2020-10-12 18:14:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-12 18:14:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-12 18:14:32,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-12 18:14:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-12 18:14:32,812 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 105 [2020-10-12 18:14:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:32,812 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-12 18:14:32,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 18:14:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-12 18:14:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 18:14:32,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:32,814 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:32,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 18:14:32,814 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:32,814 INFO L82 PathProgramCache]: Analyzing trace with hash 367057290, now seen corresponding path program 7 times [2020-10-12 18:14:32,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:32,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993916722] [2020-10-12 18:14:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:32,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:33,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:33,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 18:14:33,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-10-12 18:14:33,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:14:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 18:14:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:33,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:33,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:33,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:33,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:33,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:33,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:34,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:34,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:14:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-12 18:14:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-12 18:14:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:14:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:34,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:34,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:14:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:34,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:34,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:35,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:35,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:14:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:35,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:35,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:14:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:14:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:36,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:36,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:36,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:36,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:36,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:14:36,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:14:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:36,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:36,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:37,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:14:37,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:37,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-12 18:14:37,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:14:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:14:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:37,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:37,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:14:37,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:37,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 18:14:37,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:37,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:14:37,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:37,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:37,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:37,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 18:14:37,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:37,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:37,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:37,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:38,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 18:14:38,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:38,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 18:14:38,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:38,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:38,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:38,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 18:14:38,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:14:38,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:38,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:38,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:14:38,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:38,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:14:38,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:38,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:38,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:38,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:38,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:38,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:14:38,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-10-12 18:14:39,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993916722] [2020-10-12 18:14:39,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:39,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 18:14:39,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816081458] [2020-10-12 18:14:39,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 18:14:39,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:39,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 18:14:39,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:14:39,181 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 38 states. [2020-10-12 18:14:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:41,297 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-12 18:14:41,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 18:14:41,297 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 119 [2020-10-12 18:14:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:41,299 INFO L225 Difference]: With dead ends: 76 [2020-10-12 18:14:41,299 INFO L226 Difference]: Without dead ends: 72 [2020-10-12 18:14:41,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 27 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=216, Invalid=4476, Unknown=0, NotChecked=0, Total=4692 [2020-10-12 18:14:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-12 18:14:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-12 18:14:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-12 18:14:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-12 18:14:41,305 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 119 [2020-10-12 18:14:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:41,306 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-12 18:14:41,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 18:14:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-12 18:14:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 18:14:41,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:41,308 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:41,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 18:14:41,308 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:41,308 INFO L82 PathProgramCache]: Analyzing trace with hash 673350446, now seen corresponding path program 8 times [2020-10-12 18:14:41,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:41,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544462965] [2020-10-12 18:14:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:41,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:42,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:42,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1220 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-12 18:14:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:42,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:42,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:42,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:42,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:42,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:42,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:43,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:43,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:14:43,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:43,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-10-12 18:14:43,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:43,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 73 [2020-10-12 18:14:43,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:43,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:14:43,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:43,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:43,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:43,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:44,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:44,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:14:44,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-12 18:14:44,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:14:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:14:44,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:44,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:44,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:44,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:45,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:45,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:14:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:45,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:45,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:45,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:45,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:45,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:14:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:45,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:45,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:46,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:14:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:46,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:46,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:14:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:46,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:46,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:14:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:47,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:47,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:14:47,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-12 18:14:47,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:14:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:14:47,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:47,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:47,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:14:47,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-12 18:14:47,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:14:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:14:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:47,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:14:48,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:14:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:48,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:14:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-12 18:14:48,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:14:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:14:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:48,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:14:48,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 18:14:48,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:14:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:14:48,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:48,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:14:48,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 18:14:48,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:14:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:14:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:48,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:48,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:14:48,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:14:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:48,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:48,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:14:48,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:14:48,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:14:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:48,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:14:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:49,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:49,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:49,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:49,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:14:49,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:49,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:14:49,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:14:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:49,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:14:49,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:49,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:49,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:49,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:49,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:14:49,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:14:49,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:14:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:14:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:49,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:49,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:49,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:14:49,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:14:49,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:14:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:14:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:14:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-12 18:14:49,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544462965] [2020-10-12 18:14:49,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:14:49,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-12 18:14:49,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87096934] [2020-10-12 18:14:49,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-12 18:14:49,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:14:49,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-12 18:14:49,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 18:14:49,670 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 41 states. [2020-10-12 18:14:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:14:52,334 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-12 18:14:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-12 18:14:52,335 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 133 [2020-10-12 18:14:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:14:52,336 INFO L225 Difference]: With dead ends: 82 [2020-10-12 18:14:52,336 INFO L226 Difference]: Without dead ends: 78 [2020-10-12 18:14:52,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 30 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=219, Invalid=5481, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:14:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-12 18:14:52,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-12 18:14:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 18:14:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-10-12 18:14:52,343 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 133 [2020-10-12 18:14:52,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:14:52,344 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-10-12 18:14:52,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-12 18:14:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-10-12 18:14:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 18:14:52,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:14:52,346 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:14:52,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 18:14:52,349 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:14:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:14:52,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1125267886, now seen corresponding path program 9 times [2020-10-12 18:14:52,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:14:52,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633708968] [2020-10-12 18:14:52,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:14:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:52,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:52,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:53,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:14:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 18:14:53,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:53,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:14:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:53,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:53,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:14:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:14:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:53,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:14:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:53,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:14:54,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-10-12 18:14:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 81 [2020-10-12 18:14:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:14:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:54,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:55,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:55,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:14:55,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:55,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-10-12 18:14:55,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:14:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:14:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:55,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:56,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:56,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 777 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:14:56,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:56,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:14:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:57,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:58,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:14:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:58,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:58,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:58,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:14:58,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-12 18:14:58,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:58,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:14:58,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:58,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:14:58,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:58,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:58,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:59,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:14:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-12 18:14:59,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:14:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:14:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:59,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:59,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:14:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:14:59,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:14:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:14:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:14:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:14:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:14:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:15:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:15:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:00,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:00,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:15:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:15:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-12 18:15:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:15:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:15:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:00,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:01,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:15:01,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-12 18:15:01,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:15:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:15:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:01,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:01,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:01,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:15:01,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:01,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-12 18:15:01,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:01,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:15:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:15:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:01,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:01,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:15:01,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 18:15:01,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:15:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:01,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:15:01,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:01,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:01,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:01,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:15:01,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:01,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 18:15:01,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:15:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:15:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:01,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:01,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:01,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:01,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:15:01,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:01,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 18:15:01,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:15:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:01,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:15:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:02,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:02,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:15:02,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:15:02,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:15:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:15:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:02,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:02,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:02,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:15:02,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:15:02,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:15:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:15:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:02,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:02,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:15:02,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:02,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:15:02,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:15:02,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:02,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:15:02,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:02,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:02,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:02,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:15:02,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:15:02,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:02,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:15:02,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:02,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:15:02,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-12 18:15:02,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633708968] [2020-10-12 18:15:02,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:15:02,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-12 18:15:02,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307462602] [2020-10-12 18:15:02,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-12 18:15:02,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:15:02,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-12 18:15:02,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:15:02,960 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 45 states. [2020-10-12 18:15:06,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:15:06,413 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-12 18:15:06,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-12 18:15:06,413 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 147 [2020-10-12 18:15:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:15:06,415 INFO L225 Difference]: With dead ends: 88 [2020-10-12 18:15:06,415 INFO L226 Difference]: Without dead ends: 84 [2020-10-12 18:15:06,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=243, Invalid=6729, Unknown=0, NotChecked=0, Total=6972 [2020-10-12 18:15:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-12 18:15:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-12 18:15:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-12 18:15:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-12 18:15:06,422 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 147 [2020-10-12 18:15:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:15:06,422 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-12 18:15:06,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-12 18:15:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-12 18:15:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-12 18:15:06,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:06,424 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:06,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 18:15:06,424 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:06,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1891607286, now seen corresponding path program 10 times [2020-10-12 18:15:06,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:06,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395816904] [2020-10-12 18:15:06,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:06,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:06,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1505 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-12 18:15:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:08,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:08,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:08,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:09,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 89 [2020-10-12 18:15:09,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:09,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-12 18:15:09,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:10,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:10,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 18:15:10,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:10,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:10,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:10,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 967 [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:15:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:15:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:11,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:11,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:15:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:15:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:12,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:12,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:13,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:15:13,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:15:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:13,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:13,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:13,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:14,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:15:14,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:14,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:15:14,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:14,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:14,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:15:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:15:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:14,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:15,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:15,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:15:15,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-12 18:15:15,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:15:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:15,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:15:15,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:16,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:16,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:15:16,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:15:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:16,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:16,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:16,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:16,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:15:16,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:15:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:16,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:16,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:16,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:16,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:15:16,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 18:15:16,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:15:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:15:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:17,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:17,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:15:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 18:15:17,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:15:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:15:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:17,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:17,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:17,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:15:17,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:17,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-12 18:15:17,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:17,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:15:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:15:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:17,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:17,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:15:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-12 18:15:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:15:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:15:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:18,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:18,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:18,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:15:18,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:18,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 18:15:18,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:15:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:18,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:15:18,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:18,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:18,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:18,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:15:18,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 18:15:18,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:18,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:15:18,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:18,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:15:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:18,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:18,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:18,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:15:18,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 18:15:18,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:15:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:15:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:18,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:18,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:15:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 18:15:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:15:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:15:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:18,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:18,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:19,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:15:19,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:19,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:15:19,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:19,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:15:19,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:19,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:15:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:19,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:19,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:19,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:15:19,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:19,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:15:19,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:15:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:19,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:15:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:19,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:19,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:15:19,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:15:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:15:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:15:19,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:19,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:19,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:19,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:19,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:15:19,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:19,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:15:19,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:19,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:15:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:19,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:15:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-12 18:15:19,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395816904] [2020-10-12 18:15:19,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:15:19,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-12 18:15:19,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173657914] [2020-10-12 18:15:19,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-12 18:15:19,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:15:19,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-12 18:15:19,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2020-10-12 18:15:19,956 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 49 states. [2020-10-12 18:15:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:15:23,900 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-10-12 18:15:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-12 18:15:23,901 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 161 [2020-10-12 18:15:23,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:15:23,903 INFO L225 Difference]: With dead ends: 94 [2020-10-12 18:15:23,903 INFO L226 Difference]: Without dead ends: 90 [2020-10-12 18:15:23,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 35 SyntacticMatches, 11 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=267, Invalid=8105, Unknown=0, NotChecked=0, Total=8372 [2020-10-12 18:15:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-12 18:15:23,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-10-12 18:15:23,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-12 18:15:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-10-12 18:15:23,929 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 161 [2020-10-12 18:15:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:15:23,930 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-10-12 18:15:23,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-12 18:15:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-10-12 18:15:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 18:15:23,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:23,931 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:23,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 18:15:23,932 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:23,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1159534874, now seen corresponding path program 11 times [2020-10-12 18:15:23,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:23,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065167363] [2020-10-12 18:15:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:25,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1802 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 98 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-12 18:15:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:25,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:25,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:25,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:25,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:15:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:25,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:25,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:27,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1442 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 97 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-12 18:15:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:27,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:27,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:28,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1359 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 94 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-12 18:15:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:28,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:28,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:30,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1269 [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-12 18:15:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:30,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-12 18:15:30,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:30,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:30,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:30,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:31,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:31,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:15:31,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:31,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-12 18:15:31,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-12 18:15:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 18:15:31,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:31,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:32,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:15:32,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:32,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:15:32,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:32,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:32,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:33,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:15:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-12 18:15:33,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:15:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:15:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:33,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:34,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:15:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:15:34,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:34,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:34,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:34,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:15:34,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:34,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-12 18:15:34,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:15:34,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:34,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:15:34,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:35,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:35,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:15:35,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:35,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-12 18:15:35,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:15:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:15:35,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:35,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:35,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:35,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:36,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:36,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:36,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:15:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:36,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:36,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:36,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:36,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:36,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:15:36,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:36,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-12 18:15:36,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:15:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:15:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:36,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:36,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:37,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:15:37,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-12 18:15:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:15:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:15:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:37,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:37,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:37,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:15:37,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-10-12 18:15:37,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:15:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:15:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:37,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:37,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:37,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:38,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:15:38,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:38,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-12 18:15:38,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:15:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:38,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:15:38,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:38,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:38,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:38,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:15:38,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:38,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-12 18:15:38,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:15:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:15:38,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:38,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:38,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:15:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 18:15:38,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:15:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:15:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:38,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:38,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:38,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:39,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:15:39,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-12 18:15:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:15:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:15:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:39,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:39,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:39,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:15:39,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-12 18:15:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:15:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:15:39,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:39,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:39,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:15:39,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 18:15:39,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:15:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:15:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:39,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:39,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:39,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:39,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:15:39,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:15:39,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:15:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:15:39,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:40,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:40,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:15:40,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:15:40,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:15:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:15:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:40,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:15:40,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:15:40,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:15:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:15:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:40,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:40,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:40,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:15:40,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:15:40,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:15:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:15:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:40,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:40,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:15:40,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:15:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:15:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:15:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:15:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-10-12 18:15:41,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065167363] [2020-10-12 18:15:41,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:15:41,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2020-10-12 18:15:41,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969084491] [2020-10-12 18:15:41,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-10-12 18:15:41,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:15:41,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-10-12 18:15:41,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2754, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 18:15:41,305 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 54 states. [2020-10-12 18:15:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:15:46,029 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2020-10-12 18:15:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-12 18:15:46,030 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 175 [2020-10-12 18:15:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:15:46,032 INFO L225 Difference]: With dead ends: 100 [2020-10-12 18:15:46,032 INFO L226 Difference]: Without dead ends: 96 [2020-10-12 18:15:46,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 37 SyntacticMatches, 12 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=320, Invalid=9780, Unknown=0, NotChecked=0, Total=10100 [2020-10-12 18:15:46,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-12 18:15:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-12 18:15:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-12 18:15:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2020-10-12 18:15:46,044 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 175 [2020-10-12 18:15:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:15:46,046 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2020-10-12 18:15:46,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-10-12 18:15:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2020-10-12 18:15:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 18:15:46,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:15:46,047 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:15:46,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 18:15:46,048 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:15:46,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:15:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1016277182, now seen corresponding path program 12 times [2020-10-12 18:15:46,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:15:46,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011615207] [2020-10-12 18:15:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:15:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-12 18:15:48,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2136 [2020-10-12 18:15:48,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 106 [2020-10-12 18:15:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:15:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-12 18:15:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:48,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:15:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:48,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:48,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:15:48,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:48,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:15:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:48,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:48,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:50,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:50,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 105 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-12 18:15:50,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:50,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:52,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:52,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 18:15:52,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:52,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1928 [2020-10-12 18:15:52,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 102 [2020-10-12 18:15:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-12 18:15:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:52,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:52,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:53,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1535 [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 98 [2020-10-12 18:15:53,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-12 18:15:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:53,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:53,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1345 [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 94 [2020-10-12 18:15:55,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:55,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-12 18:15:55,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:55,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:55,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 18:15:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1197 [2020-10-12 18:15:56,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-12 18:15:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-12 18:15:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:56,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:57,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:57,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:15:57,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-10-12 18:15:57,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-12 18:15:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 18:15:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:57,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:58,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:58,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:15:58,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-12 18:15:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:15:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:15:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:58,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:58,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:15:59,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:15:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:15:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-12 18:15:59,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:15:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:15:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:15:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:15:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:15:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:15:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:15:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:15:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:00,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:16:00,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-10-12 18:16:00,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:16:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:16:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:00,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:00,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:00,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:01,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:16:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:01,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:01,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:02,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:16:02,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-12 18:16:02,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:16:02,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:02,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:16:02,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:02,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:16:02,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:16:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:02,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:16:03,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-12 18:16:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:16:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:16:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:03,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:16:03,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:03,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-12 18:16:03,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:16:03,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:03,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:03,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:04,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:16:04,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-12 18:16:04,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:16:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:04,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:04,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:04,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:16:04,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:04,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 18:16:04,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:04,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:16:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:04,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:04,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:04,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:04,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:16:04,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 18:16:04,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:16:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:05,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:05,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-12 18:16:05,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:16:05,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:05,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-12 18:16:05,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:16:05,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:05,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 18:16:05,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:16:05,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:05,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:16:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 18:16:06,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:16:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:06,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:16:06,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:06,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:16:06,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:06,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:16:06,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:16:06,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:16:06,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:16:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:06,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:16:06,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:16:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:16:06,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:06,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:06,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:16:06,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:16:06,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:16:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:07,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:07,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:07,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:07,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:07,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:07,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:07,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:07,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:07,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:07,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2020-10-12 18:16:07,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011615207] [2020-10-12 18:16:07,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:07,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2020-10-12 18:16:07,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128955727] [2020-10-12 18:16:07,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-10-12 18:16:07,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:07,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-10-12 18:16:07,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2020-10-12 18:16:07,832 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand 57 states. [2020-10-12 18:16:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:13,361 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2020-10-12 18:16:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-12 18:16:13,362 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 189 [2020-10-12 18:16:13,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:13,364 INFO L225 Difference]: With dead ends: 106 [2020-10-12 18:16:13,364 INFO L226 Difference]: Without dead ends: 102 [2020-10-12 18:16:13,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 45 SyntacticMatches, 9 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1275 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=315, Invalid=11241, Unknown=0, NotChecked=0, Total=11556 [2020-10-12 18:16:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-12 18:16:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-12 18:16:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-12 18:16:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2020-10-12 18:16:13,370 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 189 [2020-10-12 18:16:13,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:13,371 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2020-10-12 18:16:13,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-10-12 18:16:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2020-10-12 18:16:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 18:16:13,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:13,373 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:13,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 18:16:13,373 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:13,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:13,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1991692770, now seen corresponding path program 13 times [2020-10-12 18:16:13,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:13,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064958638] [2020-10-12 18:16:13,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:13,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:13,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:15,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:15,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2447 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 114 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-12 18:16:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:15,968 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 25 [2020-10-12 18:16:15,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:15,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:15,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:15,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:15,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:16,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:18,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:18,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2155 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 113 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 18:16:18,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:18,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:18,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-12 18:16:20,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:20,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2007 [2020-10-12 18:16:20,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 110 [2020-10-12 18:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:20,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-12 18:16:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:20,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:20,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:22,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1800 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 106 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-12 18:16:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:23,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:23,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1631 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 102 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-12 18:16:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:23,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:25,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:25,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 18:16:25,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:25,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-12 18:16:25,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:25,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 98 [2020-10-12 18:16:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-12 18:16:25,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:26,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 94 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-12 18:16:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:26,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:26,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:27,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1173 [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-12 18:16:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-12 18:16:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:28,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:16:29,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-12 18:16:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-12 18:16:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 18:16:29,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:29,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:29,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:30,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:16:30,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:30,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:30,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:31,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:16:31,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:16:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:31,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:31,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:32,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:16:32,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:32,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:16:32,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:32,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:33,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:33,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:16:33,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-12 18:16:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:16:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:33,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:16:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:33,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:33,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:16:33,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-10-12 18:16:33,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:16:33,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:16:33,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:34,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:34,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:16:34,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:34,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-12 18:16:34,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:16:34,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:34,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:16:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:34,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:34,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:35,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:16:35,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-12 18:16:35,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:16:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:16:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:35,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:35,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:35,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:16:35,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:35,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-12 18:16:35,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:16:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:35,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:16:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:35,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:16:36,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:36,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-12 18:16:36,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:16:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:16:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:16:36,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:36,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-12 18:16:36,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:16:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:16:36,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:36,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:36,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:36,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:16:36,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-12 18:16:36,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:16:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:16:36,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:37,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:37,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:16:37,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:37,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 18:16:37,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:37,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:16:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:16:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:37,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:16:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-12 18:16:37,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:16:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:37,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:16:37,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:37,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:16:37,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 18:16:37,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:16:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:16:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:16:38,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:38,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 18:16:38,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:16:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:16:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:16:38,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 18:16:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:16:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:16:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:16:38,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:16:38,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:16:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:16:38,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:38,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:38,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:16:38,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:16:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:16:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:38,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:16:38,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:39,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:16:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:16:39,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:16:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:16:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:39,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:39,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:39,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:39,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:16:39,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:39,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:16:39,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:39,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:16:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:16:39,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:16:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 533 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2020-10-12 18:16:40,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064958638] [2020-10-12 18:16:40,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:16:40,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2020-10-12 18:16:40,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801017665] [2020-10-12 18:16:40,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-10-12 18:16:40,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:16:40,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-10-12 18:16:40,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=3541, Unknown=0, NotChecked=0, Total=3660 [2020-10-12 18:16:40,075 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 61 states. [2020-10-12 18:16:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:16:46,297 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2020-10-12 18:16:46,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-12 18:16:46,298 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 203 [2020-10-12 18:16:46,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:16:46,300 INFO L225 Difference]: With dead ends: 112 [2020-10-12 18:16:46,300 INFO L226 Difference]: Without dead ends: 108 [2020-10-12 18:16:46,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 40 SyntacticMatches, 18 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1485 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=339, Invalid=13001, Unknown=0, NotChecked=0, Total=13340 [2020-10-12 18:16:46,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-12 18:16:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-12 18:16:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-12 18:16:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2020-10-12 18:16:46,307 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 203 [2020-10-12 18:16:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:16:46,308 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2020-10-12 18:16:46,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-10-12 18:16:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2020-10-12 18:16:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-12 18:16:46,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:16:46,310 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:16:46,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 18:16:46,310 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:16:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:16:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash -869985146, now seen corresponding path program 14 times [2020-10-12 18:16:46,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:16:46,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682214287] [2020-10-12 18:16:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:16:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:46,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:46,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:49,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2987 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 122 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-12 18:16:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:49,473 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2020-10-12 18:16:49,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:16:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:49,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:49,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:16:49,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:16:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:49,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:16:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:49,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:49,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2539 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 121 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 18:16:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:52,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2390 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 118 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-10-12 18:16:54,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:54,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:56,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:56,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 18:16:56,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2239 [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 114 [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 18:16:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:16:58,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-12 18:16:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:16:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2014 [2020-10-12 18:16:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:16:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 110 [2020-10-12 18:16:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:16:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-12 18:16:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:16:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:16:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:16:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:16:59,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:00,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:00,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-12 18:17:00,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1896 [2020-10-12 18:17:00,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 106 [2020-10-12 18:17:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-12 18:17:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:01,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:01,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:01,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:02,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 18:17:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-12 18:17:02,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 102 [2020-10-12 18:17:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 223 [2020-10-12 18:17:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:02,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:02,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:02,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1605 [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 98 [2020-10-12 18:17:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-12 18:17:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1378 [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 94 [2020-10-12 18:17:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-12 18:17:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:06,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:06,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 18:17:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1268 [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 90 [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-12 18:17:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:07,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:07,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:07,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:08,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:17:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:08,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1115 [2020-10-12 18:17:08,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:08,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-12 18:17:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 18:17:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:08,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:08,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:09,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:09,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:17:09,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:09,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-10-12 18:17:09,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:09,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-12 18:17:09,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:09,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 18:17:09,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:09,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:10,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:10,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 18:17:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:10,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:10,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:11,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:11,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 18:17:11,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-12 18:17:11,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-12 18:17:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 18:17:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:11,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:11,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:11,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:12,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:12,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 18:17:12,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 719 [2020-10-12 18:17:12,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-12 18:17:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:12,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:17:12,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:12,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:12,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:12,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:13,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:13,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:17:13,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-12 18:17:13,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-12 18:17:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:13,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-12 18:17:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:13,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:13,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 18:17:13,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:13,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-12 18:17:13,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-12 18:17:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 18:17:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:13,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:13,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:14,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:14,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:17:14,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:14,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-12 18:17:14,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-12 18:17:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 18:17:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:14,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:14,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:17:14,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-12 18:17:14,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:14,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-12 18:17:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 18:17:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:15,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:15,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:17:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-12 18:17:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-12 18:17:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 18:17:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:15,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:15,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:15,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:17:15,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-12 18:17:15,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-12 18:17:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 18:17:15,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:16,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:16,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:16,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 18:17:16,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-12 18:17:16,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-12 18:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:16,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 18:17:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:16,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:16,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:16,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:17:16,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 18:17:16,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 18:17:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:16,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:17:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 18:17:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 18:17:17,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 18:17:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:17:17,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:17,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:17,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:17:17,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:17,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 18:17:17,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:17,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 18:17:17,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:17,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:17:17,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:17,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:17:17,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 18:17:17,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 18:17:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:17:17,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:17,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:17,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:17,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:17:17,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 18:17:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:17:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:17:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:18,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:18,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:18,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 18:17:18,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:18,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:17:18,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 18:17:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:18,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:17:18,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:18,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:18,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:17:18,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:18,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:17:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:17:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:18,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:18,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:17:18,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:17:18,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:17:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:18,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:17:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:18,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:18,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:17:18,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:17:18,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:17:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:17:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:17:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2020-10-12 18:17:19,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682214287] [2020-10-12 18:17:19,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:17:19,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2020-10-12 18:17:19,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401950487] [2020-10-12 18:17:19,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-10-12 18:17:19,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:17:19,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-10-12 18:17:19,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=4033, Unknown=0, NotChecked=0, Total=4160 [2020-10-12 18:17:19,827 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand 65 states. [2020-10-12 18:17:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:17:27,281 INFO L93 Difference]: Finished difference Result 118 states and 119 transitions. [2020-10-12 18:17:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-12 18:17:27,282 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 217 [2020-10-12 18:17:27,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:17:27,284 INFO L225 Difference]: With dead ends: 118 [2020-10-12 18:17:27,284 INFO L226 Difference]: Without dead ends: 114 [2020-10-12 18:17:27,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 42 SyntacticMatches, 20 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1711 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=363, Invalid=14889, Unknown=0, NotChecked=0, Total=15252 [2020-10-12 18:17:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-12 18:17:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-12 18:17:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-12 18:17:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2020-10-12 18:17:27,290 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 217 [2020-10-12 18:17:27,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:17:27,290 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2020-10-12 18:17:27,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-10-12 18:17:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2020-10-12 18:17:27,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-12 18:17:27,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:17:27,292 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:17:27,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 18:17:27,292 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:17:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:17:27,292 INFO L82 PathProgramCache]: Analyzing trace with hash -360517462, now seen corresponding path program 15 times [2020-10-12 18:17:27,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:17:27,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448438210] [2020-10-12 18:17:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:17:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:27,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-10-12 18:17:30,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3483 [2020-10-12 18:17:30,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 130 [2020-10-12 18:17:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:17:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-12 18:17:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:17:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:30,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:30,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:17:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:30,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:17:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:31,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2959 [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:33,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 129 [2020-10-12 18:17:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 286 [2020-10-12 18:17:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:34,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:34,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:36,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:36,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2838 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 126 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-12 18:17:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:36,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:36,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2539 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 122 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 18:17:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:39,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:39,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:42,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:42,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 18:17:42,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2461 [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 118 [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-10-12 18:17:42,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:42,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2165 [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:44,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 114 [2020-10-12 18:17:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 18:17:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:17:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:17:44,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:17:46,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:17:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1972 [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 110 [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:17:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-12 18:17:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:17:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3