/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-simple/fibo_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:23:53,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:23:53,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:23:53,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:23:53,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:23:53,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:23:53,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:23:53,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:23:53,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:23:53,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:23:53,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:23:53,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:23:53,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:23:53,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:23:53,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:23:53,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:23:53,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:23:53,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:23:53,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:23:53,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:23:53,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:23:53,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:23:53,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:23:53,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:23:53,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:23:53,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:23:53,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:23:53,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:23:53,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:23:53,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:23:53,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:23:53,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:23:53,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:23:53,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:23:53,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:23:53,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:23:53,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:23:53,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:23:53,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:23:53,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:23:53,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:23:53,331 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 18:23:53,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:23:53,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:23:53,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:23:53,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:23:53,361 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:23:53,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:23:53,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:23:53,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:23:53,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:23:53,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:23:53,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:23:53,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:23:53,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:23:53,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:23:53,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:23:53,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:23:53,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:23:53,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:23:53,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:23:53,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:23:53,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:23:53,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:23:53,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:23:53,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:23:53,366 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 18:23:53,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:23:53,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:23:53,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:23:53,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:23:53,722 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:23:53,722 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-10-12 18:23:53,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d682d725/8932c9db6a8546379082756194ea1e7c/FLAG8e34b0362 [2020-10-12 18:23:54,235 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:23:54,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-10-12 18:23:54,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d682d725/8932c9db6a8546379082756194ea1e7c/FLAG8e34b0362 [2020-10-12 18:23:54,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d682d725/8932c9db6a8546379082756194ea1e7c [2020-10-12 18:23:54,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:23:54,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:23:54,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:23:54,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:23:54,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:23:54,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa43bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54, skipping insertion in model container [2020-10-12 18:23:54,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:23:54,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:23:54,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:23:54,863 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:23:54,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:23:54,893 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:23:54,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54 WrapperNode [2020-10-12 18:23:54,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:23:54,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:23:54,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:23:54,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:23:54,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (1/1) ... [2020-10-12 18:23:54,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:23:54,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:23:54,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:23:54,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:23:54,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (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 18:23:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:23:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:23:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-10-12 18:23:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:23:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:23:55,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:23:55,231 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 18:23:55,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:23:55 BoogieIcfgContainer [2020-10-12 18:23:55,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:23:55,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:23:55,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:23:55,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:23:55,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:23:54" (1/3) ... [2020-10-12 18:23:55,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365457af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:23:55, skipping insertion in model container [2020-10-12 18:23:55,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:54" (2/3) ... [2020-10-12 18:23:55,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365457af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:23:55, skipping insertion in model container [2020-10-12 18:23:55,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:23:55" (3/3) ... [2020-10-12 18:23:55,243 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-2.c [2020-10-12 18:23:55,254 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:23:55,261 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:23:55,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:23:55,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:23:55,298 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:23:55,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:23:55,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:23:55,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:23:55,299 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:23:55,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:23:55,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:23:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-12 18:23:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 18:23:55,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:55,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:55,320 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:55,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:55,325 INFO L82 PathProgramCache]: Analyzing trace with hash 537028541, now seen corresponding path program 1 times [2020-10-12 18:23:55,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:55,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568278766] [2020-10-12 18:23:55,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:55,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:55,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 18:23:55,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 18:23:55,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:23:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:23:55,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:55,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:23:55,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:55,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:55,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 18:23:55,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:55,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:55,808 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 18:23:55,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568278766] [2020-10-12 18:23:55,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:23:55,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 18:23:55,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584430351] [2020-10-12 18:23:55,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 18:23:55,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:55,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 18:23:55,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:55,830 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-10-12 18:23:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:55,876 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2020-10-12 18:23:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 18:23:55,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-12 18:23:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:55,889 INFO L225 Difference]: With dead ends: 38 [2020-10-12 18:23:55,889 INFO L226 Difference]: Without dead ends: 21 [2020-10-12 18:23:55,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-12 18:23:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-12 18:23:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-12 18:23:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-12 18:23:55,937 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-10-12 18:23:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:55,937 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-12 18:23:55,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 18:23:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-12 18:23:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 18:23:55,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:55,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:55,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:23:55,941 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:55,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:55,941 INFO L82 PathProgramCache]: Analyzing trace with hash 179123823, now seen corresponding path program 1 times [2020-10-12 18:23:55,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:55,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33366216] [2020-10-12 18:23:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:56,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:23:56,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:56,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-12 18:23:56,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:56,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:23:56,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:23:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:56,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:23:56,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:56,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:56,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:56,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:56,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:56,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:56,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:23:56,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:23:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:56,212 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 18:23:56,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33366216] [2020-10-12 18:23:56,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:23:56,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 18:23:56,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691434596] [2020-10-12 18:23:56,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 18:23:56,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:56,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 18:23:56,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:56,217 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-10-12 18:23:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:56,287 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-10-12 18:23:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 18:23:56,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-12 18:23:56,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:56,290 INFO L225 Difference]: With dead ends: 27 [2020-10-12 18:23:56,290 INFO L226 Difference]: Without dead ends: 23 [2020-10-12 18:23:56,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:23:56,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-12 18:23:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-12 18:23:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-12 18:23:56,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-12 18:23:56,299 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-10-12 18:23:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:56,300 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-12 18:23:56,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 18:23:56,300 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-12 18:23:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 18:23:56,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:56,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:56,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:23:56,302 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:56,302 INFO L82 PathProgramCache]: Analyzing trace with hash 806022394, now seen corresponding path program 1 times [2020-10-12 18:23:56,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:56,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759342700] [2020-10-12 18:23:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:56,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 18:23:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:23:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-10-12 18:23:57,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:23:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:57,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:57,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:57,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:57,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:23:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:57,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:57,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:23:57,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:57,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 18:23:57,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:23:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:23:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:57,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:57,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:57,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:57,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:23:57,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:57,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:57,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:57,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:23:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 18:23:57,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759342700] [2020-10-12 18:23:57,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:57,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 18:23:57,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016832822] [2020-10-12 18:23:57,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:23:57,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:57,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:23:57,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:23:57,697 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 8 states. [2020-10-12 18:23:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:57,783 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-10-12 18:23:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:23:57,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-12 18:23:57,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:57,786 INFO L225 Difference]: With dead ends: 33 [2020-10-12 18:23:57,786 INFO L226 Difference]: Without dead ends: 29 [2020-10-12 18:23:57,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:23:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-12 18:23:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2020-10-12 18:23:57,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-12 18:23:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2020-10-12 18:23:57,808 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 26 [2020-10-12 18:23:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:57,808 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2020-10-12 18:23:57,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:23:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2020-10-12 18:23:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 18:23:57,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:57,812 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:57,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:23:57,813 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:57,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:57,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2128676134, now seen corresponding path program 1 times [2020-10-12 18:23:57,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:57,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930484394] [2020-10-12 18:23:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:57,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:58,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 18:23:59,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:23:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1263 [2020-10-12 18:23:59,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:59,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:23:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:59,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:59,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:23:59,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:59,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:23:59,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:23:59,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-12 18:23:59,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:23:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:23:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:59,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:23:59,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:59,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:59,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:59,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:23:59,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:59,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:23:59,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930484394] [2020-10-12 18:23:59,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:59,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:23:59,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386816742] [2020-10-12 18:23:59,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:23:59,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:23:59,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:23:59,675 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 9 states. [2020-10-12 18:23:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:59,764 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2020-10-12 18:23:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:23:59,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-12 18:23:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:59,769 INFO L225 Difference]: With dead ends: 42 [2020-10-12 18:23:59,769 INFO L226 Difference]: Without dead ends: 38 [2020-10-12 18:23:59,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:23:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-12 18:23:59,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2020-10-12 18:23:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-12 18:23:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 50 transitions. [2020-10-12 18:23:59,797 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 50 transitions. Word has length 27 [2020-10-12 18:23:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:59,798 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 50 transitions. [2020-10-12 18:23:59,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:23:59,798 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2020-10-12 18:23:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 18:23:59,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:59,806 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:59,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:23:59,806 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -983862936, now seen corresponding path program 2 times [2020-10-12 18:23:59,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:59,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38647392] [2020-10-12 18:23:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:00,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 18:24:00,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-12 18:24:00,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:24:00,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:00,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:00,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:00,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:00,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:24:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:24:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:00,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:00,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:00,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:24:00,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:00,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:00,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:00,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:00,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:24:00,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:24:00,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38647392] [2020-10-12 18:24:00,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:00,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:24:00,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302105792] [2020-10-12 18:24:00,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:24:00,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:00,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:24:00,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:24:00,251 INFO L87 Difference]: Start difference. First operand 33 states and 50 transitions. Second operand 9 states. [2020-10-12 18:24:00,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:00,325 INFO L93 Difference]: Finished difference Result 47 states and 77 transitions. [2020-10-12 18:24:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:24:00,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-12 18:24:00,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:00,329 INFO L225 Difference]: With dead ends: 47 [2020-10-12 18:24:00,329 INFO L226 Difference]: Without dead ends: 43 [2020-10-12 18:24:00,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:24:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-12 18:24:00,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2020-10-12 18:24:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-12 18:24:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2020-10-12 18:24:00,343 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 27 [2020-10-12 18:24:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:00,343 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2020-10-12 18:24:00,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:24:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2020-10-12 18:24:00,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 18:24:00,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:00,346 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:00,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:24:00,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:00,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1432995631, now seen corresponding path program 3 times [2020-10-12 18:24:00,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:00,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218607476] [2020-10-12 18:24:00,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:00,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:01,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 18:24:05,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:24:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4994 [2020-10-12 18:24:05,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:24:05,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:05,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:05,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:05,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:05,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:05,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:24:05,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-12 18:24:05,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:05,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:24:05,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:05,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:05,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:05,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:05,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:05,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:05,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:05,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:24:05,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:05,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:05,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:05,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:05,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:05,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:05,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:05,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:06,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:06,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:24:06,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:06,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 18:24:06,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218607476] [2020-10-12 18:24:06,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:06,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:24:06,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043920679] [2020-10-12 18:24:06,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:24:06,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:06,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:24:06,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:24:06,039 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand 10 states. [2020-10-12 18:24:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:06,129 INFO L93 Difference]: Finished difference Result 59 states and 109 transitions. [2020-10-12 18:24:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:24:06,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-10-12 18:24:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:06,134 INFO L225 Difference]: With dead ends: 59 [2020-10-12 18:24:06,134 INFO L226 Difference]: Without dead ends: 55 [2020-10-12 18:24:06,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:06,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-12 18:24:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2020-10-12 18:24:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 18:24:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions. [2020-10-12 18:24:06,168 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 40 [2020-10-12 18:24:06,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:06,170 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions. [2020-10-12 18:24:06,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:24:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2020-10-12 18:24:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 18:24:06,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:06,178 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:06,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:24:06,179 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:06,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1731864637, now seen corresponding path program 4 times [2020-10-12 18:24:06,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:06,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183700917] [2020-10-12 18:24:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:06,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:11,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:24:11,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 18:24:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:24:11,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:24:11,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:24:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:11,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:11,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:11,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:11,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:11,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:11,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:13,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:13,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:24:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2344 [2020-10-12 18:24:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:13,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:13,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:13,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:13,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:13,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:13,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:13,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:13,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:13,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 18:24:13,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:13,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:13,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:13,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:24:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:13,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:13,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:13,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:13,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:13,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:13,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:13,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:13,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:13,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:13,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:24:13,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:13,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-12 18:24:13,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183700917] [2020-10-12 18:24:13,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:13,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:13,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395615028] [2020-10-12 18:24:13,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:13,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:13,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:13,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:13,873 INFO L87 Difference]: Start difference. First operand 40 states and 72 transitions. Second operand 11 states. [2020-10-12 18:24:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:13,997 INFO L93 Difference]: Finished difference Result 59 states and 106 transitions. [2020-10-12 18:24:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:24:13,999 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-10-12 18:24:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:14,002 INFO L225 Difference]: With dead ends: 59 [2020-10-12 18:24:14,002 INFO L226 Difference]: Without dead ends: 55 [2020-10-12 18:24:14,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:24:14,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-12 18:24:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 40. [2020-10-12 18:24:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 18:24:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions. [2020-10-12 18:24:14,015 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 41 [2020-10-12 18:24:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:14,016 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions. [2020-10-12 18:24:14,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2020-10-12 18:24:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 18:24:14,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:14,018 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:14,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:24:14,018 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:14,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1893001919, now seen corresponding path program 5 times [2020-10-12 18:24:14,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:14,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170589340] [2020-10-12 18:24:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:14,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:14,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:14,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:14,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:14,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 18:24:16,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:24:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2216 [2020-10-12 18:24:16,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:24:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:16,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:16,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:24:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:16,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:16,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:16,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:24:16,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 18:24:16,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:24:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:16,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:16,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:16,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:16,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:16,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:16,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:16,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-12 18:24:16,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170589340] [2020-10-12 18:24:16,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:16,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:16,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744737093] [2020-10-12 18:24:16,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:16,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:16,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:16,798 INFO L87 Difference]: Start difference. First operand 40 states and 72 transitions. Second operand 11 states. [2020-10-12 18:24:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:16,885 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-12 18:24:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:24:16,888 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-12 18:24:16,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:16,889 INFO L225 Difference]: With dead ends: 54 [2020-10-12 18:24:16,889 INFO L226 Difference]: Without dead ends: 50 [2020-10-12 18:24:16,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:24:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-12 18:24:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 40. [2020-10-12 18:24:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 18:24:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions. [2020-10-12 18:24:16,908 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 40 [2020-10-12 18:24:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:16,909 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions. [2020-10-12 18:24:16,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2020-10-12 18:24:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 18:24:16,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:16,911 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:16,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:24:16,911 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:16,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1426163185, now seen corresponding path program 1 times [2020-10-12 18:24:16,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:16,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452536842] [2020-10-12 18:24:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3027 [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:19,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:24:19,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:19,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:19,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:19,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:19,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:19,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:19,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:19,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:19,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:19,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:20,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:20,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:20,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:24:20,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:20,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:20,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:20,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:20,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:20,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:20,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 18:24:20,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452536842] [2020-10-12 18:24:20,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:20,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:20,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128169373] [2020-10-12 18:24:20,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:20,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:20,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:20,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:20,560 INFO L87 Difference]: Start difference. First operand 40 states and 72 transitions. Second operand 11 states. [2020-10-12 18:24:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:20,646 INFO L93 Difference]: Finished difference Result 65 states and 127 transitions. [2020-10-12 18:24:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:24:20,646 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2020-10-12 18:24:20,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:20,648 INFO L225 Difference]: With dead ends: 65 [2020-10-12 18:24:20,648 INFO L226 Difference]: Without dead ends: 61 [2020-10-12 18:24:20,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-12 18:24:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2020-10-12 18:24:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-12 18:24:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2020-10-12 18:24:20,677 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 96 transitions. Word has length 42 [2020-10-12 18:24:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:20,677 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 96 transitions. [2020-10-12 18:24:20,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2020-10-12 18:24:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 18:24:20,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:20,681 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:20,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:24:20,681 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:20,682 INFO L82 PathProgramCache]: Analyzing trace with hash 499839773, now seen corresponding path program 6 times [2020-10-12 18:24:20,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:20,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134721195] [2020-10-12 18:24:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:24:22,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:24:22,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1449 [2020-10-12 18:24:22,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:22,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:22,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:22,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:22,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:22,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:22,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:22,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:22,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 18:24:22,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 18:24:22,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134721195] [2020-10-12 18:24:22,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:22,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:24:22,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780062522] [2020-10-12 18:24:22,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:24:22,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:22,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:24:22,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:24:22,458 INFO L87 Difference]: Start difference. First operand 49 states and 96 transitions. Second operand 10 states. [2020-10-12 18:24:22,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:22,511 INFO L93 Difference]: Finished difference Result 75 states and 175 transitions. [2020-10-12 18:24:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:24:22,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-12 18:24:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:22,513 INFO L225 Difference]: With dead ends: 75 [2020-10-12 18:24:22,513 INFO L226 Difference]: Without dead ends: 71 [2020-10-12 18:24:22,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-12 18:24:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2020-10-12 18:24:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 18:24:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 116 transitions. [2020-10-12 18:24:22,535 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 116 transitions. Word has length 41 [2020-10-12 18:24:22,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:22,535 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 116 transitions. [2020-10-12 18:24:22,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:24:22,536 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 116 transitions. [2020-10-12 18:24:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 18:24:22,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:22,537 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:22,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:24:22,537 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:22,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1123642284, now seen corresponding path program 7 times [2020-10-12 18:24:22,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:22,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136187699] [2020-10-12 18:24:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:22,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:22,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:23,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:23,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:24:27,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:24:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:27,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:27,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:27,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1628 [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:24:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:29,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:29,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 4 proven. 40 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-12 18:24:29,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136187699] [2020-10-12 18:24:29,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:29,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 18:24:29,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784718723] [2020-10-12 18:24:29,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:24:29,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:29,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:24:29,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:24:29,641 INFO L87 Difference]: Start difference. First operand 54 states and 116 transitions. Second operand 13 states. [2020-10-12 18:24:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:29,771 INFO L93 Difference]: Finished difference Result 91 states and 221 transitions. [2020-10-12 18:24:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:24:29,773 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-12 18:24:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:29,775 INFO L225 Difference]: With dead ends: 91 [2020-10-12 18:24:29,775 INFO L226 Difference]: Without dead ends: 87 [2020-10-12 18:24:29,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:24:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-12 18:24:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 51. [2020-10-12 18:24:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-12 18:24:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 107 transitions. [2020-10-12 18:24:29,807 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 107 transitions. Word has length 54 [2020-10-12 18:24:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:29,809 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 107 transitions. [2020-10-12 18:24:29,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:24:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 107 transitions. [2020-10-12 18:24:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 18:24:29,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:29,812 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:29,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:24:29,813 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1762062488, now seen corresponding path program 8 times [2020-10-12 18:24:29,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:29,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121938354] [2020-10-12 18:24:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:29,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:29,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:24:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:34,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:34,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:34,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:34,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:35,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2869 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:37,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:37,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:37,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:38,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:24:38,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-10-12 18:24:38,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:24:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 43 proven. 34 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-12 18:24:38,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121938354] [2020-10-12 18:24:38,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:38,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:24:38,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548271309] [2020-10-12 18:24:38,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:24:38,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:38,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:24:38,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:24:38,741 INFO L87 Difference]: Start difference. First operand 51 states and 107 transitions. Second operand 9 states. [2020-10-12 18:24:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:38,977 INFO L93 Difference]: Finished difference Result 97 states and 222 transitions. [2020-10-12 18:24:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:24:38,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-12 18:24:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:38,979 INFO L225 Difference]: With dead ends: 97 [2020-10-12 18:24:38,979 INFO L226 Difference]: Without dead ends: 51 [2020-10-12 18:24:38,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:24:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-12 18:24:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2020-10-12 18:24:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 18:24:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2020-10-12 18:24:38,989 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 55 [2020-10-12 18:24:38,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:38,989 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2020-10-12 18:24:38,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:24:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2020-10-12 18:24:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-12 18:24:38,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:38,992 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:38,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:24:38,993 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:38,997 INFO L82 PathProgramCache]: Analyzing trace with hash 653994407, now seen corresponding path program 9 times [2020-10-12 18:24:38,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:38,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706109641] [2020-10-12 18:24:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:39,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:44,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 18:24:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:44,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:44,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:45,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:24:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:49,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:49,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:49,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:24:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:24:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:49,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:49,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:49,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:49,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:24:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 60 proven. 76 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-12 18:24:49,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706109641] [2020-10-12 18:24:49,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:49,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:49,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152636990] [2020-10-12 18:24:49,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:49,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:49,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:49,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:49,731 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand 11 states. [2020-10-12 18:24:49,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:49,953 INFO L93 Difference]: Finished difference Result 92 states and 152 transitions. [2020-10-12 18:24:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:24:49,954 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2020-10-12 18:24:49,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:49,955 INFO L225 Difference]: With dead ends: 92 [2020-10-12 18:24:49,955 INFO L226 Difference]: Without dead ends: 50 [2020-10-12 18:24:49,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:24:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-12 18:24:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-12 18:24:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 18:24:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2020-10-12 18:24:49,963 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 68 [2020-10-12 18:24:49,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:49,963 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2020-10-12 18:24:49,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2020-10-12 18:24:49,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 18:24:49,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:49,966 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:49,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:24:49,966 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:49,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1587771422, now seen corresponding path program 10 times [2020-10-12 18:24:49,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:49,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207266312] [2020-10-12 18:24:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:51,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:54,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 18:24:54,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:24:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:24:54,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:24:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:24:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:24:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:54,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:54,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:55,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:24:55,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:24:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-12 18:24:55,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:24:55,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:55,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:55,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:24:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:55,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:56,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:56,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:56,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:56,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:56,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:24:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:56,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:56,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:56,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:24:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:56,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:56,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:56,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-12 18:24:56,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207266312] [2020-10-12 18:24:56,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:56,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:24:56,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142276941] [2020-10-12 18:24:56,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:24:56,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:56,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:24:56,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:24:56,043 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand 15 states. [2020-10-12 18:24:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:56,139 INFO L93 Difference]: Finished difference Result 61 states and 86 transitions. [2020-10-12 18:24:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:24:56,140 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-10-12 18:24:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:56,141 INFO L225 Difference]: With dead ends: 61 [2020-10-12 18:24:56,142 INFO L226 Difference]: Without dead ends: 57 [2020-10-12 18:24:56,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:24:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-12 18:24:56,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-10-12 18:24:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-12 18:24:56,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 80 transitions. [2020-10-12 18:24:56,150 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 80 transitions. Word has length 55 [2020-10-12 18:24:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:56,151 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 80 transitions. [2020-10-12 18:24:56,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:24:56,151 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 80 transitions. [2020-10-12 18:24:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:24:56,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:56,152 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:56,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:24:56,152 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:56,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:56,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1986920854, now seen corresponding path program 11 times [2020-10-12 18:24:56,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:56,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687400825] [2020-10-12 18:24:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:56,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:25:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:25:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:25:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:25:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:01,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:01,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:01,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:25:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:01,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:25:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:25:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:06,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:06,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:06,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:07,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:07,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:25:07,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:07,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:25:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-12 18:25:07,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:25:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:25:07,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:25:07,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:25:07,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:07,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:07,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:07,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:07,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 83 proven. 129 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-12 18:25:07,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687400825] [2020-10-12 18:25:07,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:25:07,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:25:07,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653678822] [2020-10-12 18:25:07,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:25:07,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:25:07,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:25:07,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:25:07,923 INFO L87 Difference]: Start difference. First operand 56 states and 80 transitions. Second operand 15 states. [2020-10-12 18:25:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:25:08,270 INFO L93 Difference]: Finished difference Result 114 states and 173 transitions. [2020-10-12 18:25:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:25:08,270 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 82 [2020-10-12 18:25:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:25:08,274 INFO L225 Difference]: With dead ends: 114 [2020-10-12 18:25:08,274 INFO L226 Difference]: Without dead ends: 66 [2020-10-12 18:25:08,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:25:08,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-12 18:25:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2020-10-12 18:25:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-12 18:25:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2020-10-12 18:25:08,282 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 76 transitions. Word has length 82 [2020-10-12 18:25:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:25:08,282 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 76 transitions. [2020-10-12 18:25:08,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:25:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2020-10-12 18:25:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-12 18:25:08,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:25:08,284 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:25:08,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:25:08,284 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:25:08,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:25:08,284 INFO L82 PathProgramCache]: Analyzing trace with hash 788915391, now seen corresponding path program 12 times [2020-10-12 18:25:08,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:25:08,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017853557] [2020-10-12 18:25:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:25:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:08,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:10,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:13,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 18:25:13,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-12 18:25:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:25:13,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 18:25:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:25:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:25:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:25:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:13,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:13,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:25:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:13,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:15,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:15,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:18,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:25:18,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:25:18,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:25:18,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:25:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 18:25:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:18,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:18,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:25:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:25:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:20,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:25:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:25:20,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:20,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:20,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:25:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:20,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:20,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:20,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:25:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:20,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:20,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:20,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:25:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:20,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:20,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:20,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:20,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:25:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:20,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:20,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:20,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:25:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 20 proven. 60 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-12 18:25:20,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017853557] [2020-10-12 18:25:20,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:25:20,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:25:20,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17516021] [2020-10-12 18:25:20,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:25:20,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:25:20,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:25:20,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:25:20,404 INFO L87 Difference]: Start difference. First operand 60 states and 76 transitions. Second operand 17 states. [2020-10-12 18:25:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:25:20,514 INFO L93 Difference]: Finished difference Result 75 states and 104 transitions. [2020-10-12 18:25:20,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:25:20,514 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-10-12 18:25:20,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:25:20,515 INFO L225 Difference]: With dead ends: 75 [2020-10-12 18:25:20,516 INFO L226 Difference]: Without dead ends: 71 [2020-10-12 18:25:20,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:25:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-12 18:25:20,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2020-10-12 18:25:20,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-12 18:25:20,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2020-10-12 18:25:20,524 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 69 [2020-10-12 18:25:20,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:25:20,524 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2020-10-12 18:25:20,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:25:20,524 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2020-10-12 18:25:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 18:25:20,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:25:20,526 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:25:20,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:25:20,526 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:25:20,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:25:20,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1319793316, now seen corresponding path program 13 times [2020-10-12 18:25:20,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:25:20,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202181106] [2020-10-12 18:25:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:25:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:22,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:25,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 18:25:25,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:25:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:25:25,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:25:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:25:25,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 18:25:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:25:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:25,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:25,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:25:25,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:25:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:25,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:25,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:30,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:25:30,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 29 [2020-10-12 18:25:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:25:30,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 18:25:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:25:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 18:25:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:30,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:30,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:30,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:31,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:32,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:32,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:25:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:25:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:35,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:35,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:35,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:36,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1250 [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:25:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:25:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:36,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:36,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:37,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:37,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:37,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:37,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:37,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:37,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:37,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 18:25:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:37,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:25:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:37,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:37,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:37,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:37,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:37,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:37,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:37,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 156 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-12 18:25:37,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202181106] [2020-10-12 18:25:37,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:25:37,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:25:37,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633940920] [2020-10-12 18:25:37,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:25:37,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:25:37,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:25:37,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:25:37,302 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 11 states. [2020-10-12 18:25:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:25:37,537 INFO L93 Difference]: Finished difference Result 162 states and 270 transitions. [2020-10-12 18:25:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:25:37,538 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-10-12 18:25:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:25:37,539 INFO L225 Difference]: With dead ends: 162 [2020-10-12 18:25:37,539 INFO L226 Difference]: Without dead ends: 98 [2020-10-12 18:25:37,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:25:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-12 18:25:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2020-10-12 18:25:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-12 18:25:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2020-10-12 18:25:37,549 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 83 [2020-10-12 18:25:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:25:37,549 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2020-10-12 18:25:37,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:25:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2020-10-12 18:25:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-12 18:25:37,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:25:37,553 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:25:37,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:25:37,554 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:25:37,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:25:37,554 INFO L82 PathProgramCache]: Analyzing trace with hash 223191898, now seen corresponding path program 14 times [2020-10-12 18:25:37,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:25:37,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108972771] [2020-10-12 18:25:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:25:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:37,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:42,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:42,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-12 18:25:42,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 18:25:42,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-12 18:25:42,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 18:25:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:25:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 325 [2020-10-12 18:25:42,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:42,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:25:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:42,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:25:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:42,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:42,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:43,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:43,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:43,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:43,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:47,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:47,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 450 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 249 [2020-10-12 18:25:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:47,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:47,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:47,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:47,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:48,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:48,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:48,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:49,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:52,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:52,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-12 18:25:52,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:25:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:25:52,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:25:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-12 18:25:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:52,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:52,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 18:25:52,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:52,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 18:25:52,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:52,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 18:25:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:52,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:52,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:52,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:52,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:25:52,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:52,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:25:52,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:53,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:25:53,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:53,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:53,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:53,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:53,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:53,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:53,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:53,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:53,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:53,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:53,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:53,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:25:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:53,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:25:53,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:53,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:53,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:53,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:53,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:53,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:53,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:53,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:53,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:25:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:25:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:53,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:53,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:58,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:25:58,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 18:25:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:25:58,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:25:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:58,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 18:25:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:58,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:58,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:59,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:59,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:59,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:59,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:59,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:59,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:59,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:59,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:59,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:59,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-12 18:25:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:59,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:59,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:26:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:26:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 18:26:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:04,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:04,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:04,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 18:26:09,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:09,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:11,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:11,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:14,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:26:14,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:26:14,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:26:14,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:26:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 18:26:14,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:14,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:14,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:26:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:26:15,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:26:15,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:26:15,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:26:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:26:15,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:26:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:26:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:26:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:26:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:26:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:26:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:26:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:26:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:26:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:26:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:26:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:26:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:26:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:26:15,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:26:15,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:26:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:26:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:26:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:15,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:26:15,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:26:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:26:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:26:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 18:26:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:26:15,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:26:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:15,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:26:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:26:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:26:15,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:26:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:26:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:15,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:15,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:15,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:26:15,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1657 proven. 1708 refuted. 0 times theorem prover too weak. 3755 trivial. 0 not checked. [2020-10-12 18:26:15,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108972771] [2020-10-12 18:26:15,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:26:15,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 18:26:15,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146764886] [2020-10-12 18:26:15,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:26:15,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:26:15,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:26:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:26:15,441 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand 25 states. [2020-10-12 18:26:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:26:16,188 INFO L93 Difference]: Finished difference Result 184 states and 316 transitions. [2020-10-12 18:26:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 18:26:16,188 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 354 [2020-10-12 18:26:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:26:16,192 INFO L225 Difference]: With dead ends: 184 [2020-10-12 18:26:16,192 INFO L226 Difference]: Without dead ends: 104 [2020-10-12 18:26:16,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=334, Invalid=998, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 18:26:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-12 18:26:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2020-10-12 18:26:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-12 18:26:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2020-10-12 18:26:16,209 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 354 [2020-10-12 18:26:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:26:16,210 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2020-10-12 18:26:16,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:26:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2020-10-12 18:26:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-12 18:26:16,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:26:16,220 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:26:16,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:26:16,221 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:26:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:26:16,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1425621089, now seen corresponding path program 15 times [2020-10-12 18:26:16,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:26:16,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815221691] [2020-10-12 18:26:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:26:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 18:26:16,256 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 18:26:16,256 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 18:26:16,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 18:26:16,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:26:16 BoogieIcfgContainer [2020-10-12 18:26:16,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:26:16,295 INFO L168 Benchmark]: Toolchain (without parser) took 141629.50 ms. Allocated memory was 139.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 102.9 MB in the beginning and 378.3 MB in the end (delta: -275.4 MB). Peak memory consumption was 892.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:16,296 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 18:26:16,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.27 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:16,297 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 139.5 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:16,297 INFO L168 Benchmark]: RCFGBuilder took 312.86 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 168.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:16,298 INFO L168 Benchmark]: TraceAbstraction took 141055.87 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 168.0 MB in the beginning and 378.3 MB in the end (delta: -210.3 MB). Peak memory consumption was 895.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:16,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.27 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 139.5 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.86 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 168.6 MB in the end (delta: -77.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 141055.87 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 168.0 MB in the beginning and 378.3 MB in the end (delta: -210.3 MB). Peak memory consumption was 895.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] int x = 7; [L25] CALL, EXPR fibo(x) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L25] RET, EXPR fibo(x) [L25] int result = fibo(x); [L26] COND TRUE result == 13 [L27] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 140.9s, OverallIterations: 19, TraceHistogramMax: 51, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 417 SDtfs, 289 SDslu, 1901 SDs, 0 SdLazy, 1429 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 636 GetRequests, 395 SyntacticMatches, 6 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 159 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 137.0s InterpolantComputationTime, 1417 NumberOfCodeBlocks, 1417 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1113 ConstructedInterpolants, 0 QuantifiedInterpolants, 371694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 6392/8720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...