/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_25x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:21:03,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:03,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:03,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:03,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:03,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:03,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:03,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:03,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:03,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:03,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:03,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:03,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:03,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:03,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:03,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:03,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:03,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:03,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:03,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:03,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:03,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:03,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:03,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:03,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:03,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:03,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:03,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:03,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:03,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:03,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:03,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:03,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:03,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:03,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:03,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:03,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:03,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:03,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:03,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:03,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:03,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:21:03,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:03,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:03,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:03,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:03,318 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:03,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:03,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:03,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:03,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:03,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:03,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:03,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:03,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:03,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:03,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:03,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:03,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:03,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:03,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:03,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:03,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:03,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:03,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:03,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:03,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:03,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:03,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:03,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:03,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:03,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:21:03,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:03,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:03,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:03,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:03,843 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:03,844 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2020-09-25 04:21:03,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6daf8e32/9907e2d089364dc3a323f89cc9241ae9/FLAGa224fcf48 [2020-09-25 04:21:04,428 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:04,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2020-09-25 04:21:04,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6daf8e32/9907e2d089364dc3a323f89cc9241ae9/FLAGa224fcf48 [2020-09-25 04:21:04,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6daf8e32/9907e2d089364dc3a323f89cc9241ae9 [2020-09-25 04:21:04,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:04,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:04,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:04,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:04,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:04,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:04" (1/1) ... [2020-09-25 04:21:04,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a111ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:04, skipping insertion in model container [2020-09-25 04:21:04,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:04" (1/1) ... [2020-09-25 04:21:04,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:04,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:05,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:05,078 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:05,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:05,116 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:05,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05 WrapperNode [2020-09-25 04:21:05,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:05,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:05,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:05,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:05,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... [2020-09-25 04:21:05,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:05,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:05,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:05,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:05,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:05,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-25 04:21:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-25 04:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:05,505 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:05,505 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:21:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:05 BoogieIcfgContainer [2020-09-25 04:21:05,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:05,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:05,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:05,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:05,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:04" (1/3) ... [2020-09-25 04:21:05,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae33433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:05, skipping insertion in model container [2020-09-25 04:21:05,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:05" (2/3) ... [2020-09-25 04:21:05,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae33433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:05, skipping insertion in model container [2020-09-25 04:21:05,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:05" (3/3) ... [2020-09-25 04:21:05,520 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_25x0-1.c [2020-09-25 04:21:05,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:05,542 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:05,564 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:05,595 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:05,595 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:05,596 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:05,596 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:05,596 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:05,596 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:05,596 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:05,597 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 04:21:05,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 04:21:05,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:05,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:05,631 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-25 04:21:05,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:05,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852816864] [2020-09-25 04:21:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:05,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:05,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:06,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 04:21:06,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:06,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:21:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 04:21:06,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:06,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:06,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:06,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:06,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:06,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:06,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:06,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:06,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:06,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:06,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:06,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:06,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:06,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 04:21:06,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:06,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:06,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:21:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:06,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852816864] [2020-09-25 04:21:06,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:06,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:21:06,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016884730] [2020-09-25 04:21:06,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:21:06,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:06,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:21:06,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:21:06,408 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-25 04:21:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:06,539 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-25 04:21:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:21:06,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 04:21:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:06,557 INFO L225 Difference]: With dead ends: 39 [2020-09-25 04:21:06,557 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 04:21:06,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 04:21:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 04:21:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 04:21:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-25 04:21:06,624 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-25 04:21:06,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:06,624 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-25 04:21:06,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:21:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-25 04:21:06,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 04:21:06,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:06,628 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:06,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:06,628 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:06,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-25 04:21:06,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:06,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630756062] [2020-09-25 04:21:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:06,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:21:07,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-25 04:21:07,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:21:07,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:21:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:07,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:07,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:07,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:07,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:07,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:07,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:07,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 04:21:07,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:21:07,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:07,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:21:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:07,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:21:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 04:21:07,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630756062] [2020-09-25 04:21:07,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:07,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:21:07,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084021536] [2020-09-25 04:21:07,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:07,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:07,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:07,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:07,330 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states. [2020-09-25 04:21:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:07,393 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-25 04:21:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:21:07,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-25 04:21:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:07,395 INFO L225 Difference]: With dead ends: 36 [2020-09-25 04:21:07,395 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 04:21:07,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 04:21:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 04:21:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 04:21:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 04:21:07,404 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-25 04:21:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:07,405 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 04:21:07,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 04:21:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 04:21:07,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:07,407 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:07,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:07,407 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-25 04:21:07,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:07,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204378825] [2020-09-25 04:21:07,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 04:21:07,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:07,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-25 04:21:07,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:21:07,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:07,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:07,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:07,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:07,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:07,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:07,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:07,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:08,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:08,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:08,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:21:08,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:08,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:21:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:08,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:21:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:08,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:08,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:08,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:08,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:08,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 04:21:08,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:08,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:08,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:08,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:21:08,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:08,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:21:08,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:08,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:08,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 04:21:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:21:08,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204378825] [2020-09-25 04:21:08,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:08,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:21:08,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763895649] [2020-09-25 04:21:08,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:08,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:08,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:08,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:08,240 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-09-25 04:21:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:08,351 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 04:21:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:21:08,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-25 04:21:08,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:08,354 INFO L225 Difference]: With dead ends: 41 [2020-09-25 04:21:08,354 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 04:21:08,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:21:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 04:21:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 04:21:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 04:21:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-25 04:21:08,370 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-25 04:21:08,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:08,372 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-25 04:21:08,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-25 04:21:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 04:21:08,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:08,376 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:08,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:08,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:08,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-25 04:21:08,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:08,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140819274] [2020-09-25 04:21:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:08,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:21:09,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:09,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 04:21:09,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:21:09,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:09,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:21:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:09,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:09,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:09,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 04:21:09,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:21:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:21:09,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:09,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 04:21:09,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:09,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:09,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 04:21:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:09,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:21:09,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 04:21:09,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140819274] [2020-09-25 04:21:09,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:09,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 04:21:09,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049775618] [2020-09-25 04:21:09,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:21:09,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:09,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:21:09,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:21:09,915 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states. [2020-09-25 04:21:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:10,025 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 04:21:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:21:10,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-25 04:21:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:10,027 INFO L225 Difference]: With dead ends: 46 [2020-09-25 04:21:10,027 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 04:21:10,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:21:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 04:21:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 04:21:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 04:21:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 04:21:10,043 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-25 04:21:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:10,044 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 04:21:10,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:21:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 04:21:10,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 04:21:10,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:10,052 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:10,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:21:10,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:10,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-25 04:21:10,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:10,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787013106] [2020-09-25 04:21:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:10,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 04:21:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-09-25 04:21:11,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:21:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 04:21:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:11,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:11,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:11,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 04:21:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:21:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 04:21:11,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:11,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:11,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 04:21:11,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:11,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:11,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 04:21:11,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:11,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:11,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:21:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:11,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 04:21:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:11,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:11,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:11,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:11,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:21:11,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:11,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-25 04:21:12,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787013106] [2020-09-25 04:21:12,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:12,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 04:21:12,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856071530] [2020-09-25 04:21:12,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:21:12,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:12,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:21:12,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:21:12,027 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 9 states. [2020-09-25 04:21:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:12,146 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 04:21:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:21:12,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-09-25 04:21:12,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:12,149 INFO L225 Difference]: With dead ends: 51 [2020-09-25 04:21:12,153 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 04:21:12,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:21:12,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 04:21:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 04:21:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 04:21:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-25 04:21:12,170 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-25 04:21:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:12,172 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-25 04:21:12,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:21:12,173 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-25 04:21:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 04:21:12,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:12,175 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:12,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:21:12,176 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-25 04:21:12,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:12,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233121739] [2020-09-25 04:21:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:12,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:13,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:13,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 04:21:13,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1720 [2020-09-25 04:21:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:13,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:21:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:13,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:13,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:13,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:13,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:13,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:13,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:13,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:13,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:13,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:13,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:14,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 04:21:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 04:21:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:14,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 04:21:14,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:14,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:14,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 04:21:14,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:14,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 04:21:14,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:14,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 04:21:14,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:14,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:21:14,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 04:21:14,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233121739] [2020-09-25 04:21:14,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:14,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 04:21:14,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602199898] [2020-09-25 04:21:14,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:21:14,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:14,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:21:14,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:21:14,988 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2020-09-25 04:21:15,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:15,130 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-25 04:21:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:21:15,131 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-25 04:21:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:15,133 INFO L225 Difference]: With dead ends: 56 [2020-09-25 04:21:15,133 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 04:21:15,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:21:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 04:21:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 04:21:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 04:21:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 04:21:15,141 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-25 04:21:15,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:15,142 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 04:21:15,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:21:15,142 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 04:21:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 04:21:15,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:15,144 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:15,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:21:15,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:15,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:15,145 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-25 04:21:15,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:15,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955101620] [2020-09-25 04:21:15,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:15,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:15,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:16,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:16,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 04:21:16,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1829 [2020-09-25 04:21:16,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:16,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:21:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 04:21:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:17,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:17,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:17,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:17,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:17,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:17,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:17,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 04:21:17,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:17,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:17,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:21:17,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 04:21:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:17,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:17,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:17,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:17,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 04:21:17,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:17,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:17,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:17,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 04:21:17,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:17,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:18,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:18,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:18,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 04:21:18,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:18,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:18,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:18,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:18,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:18,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:18,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:18,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 04:21:18,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:18,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:18,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:18,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:18,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:18,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:18,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:18,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:21:18,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:18,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:18,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:18,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:18,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:18,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:18,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:18,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:21:18,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:18,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 21 proven. 94 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 04:21:18,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955101620] [2020-09-25 04:21:18,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:18,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 04:21:18,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614458511] [2020-09-25 04:21:18,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:21:18,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:18,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:21:18,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:21:18,407 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states. [2020-09-25 04:21:18,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:18,577 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-25 04:21:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:21:18,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-09-25 04:21:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:18,579 INFO L225 Difference]: With dead ends: 61 [2020-09-25 04:21:18,582 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 04:21:18,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:21:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 04:21:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 04:21:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 04:21:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 04:21:18,596 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-25 04:21:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:18,596 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 04:21:18,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:21:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 04:21:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 04:21:18,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:18,599 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:18,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:21:18,599 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:18,602 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-25 04:21:18,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:18,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638371375] [2020-09-25 04:21:18,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:19,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:20,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:20,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 04:21:20,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1842 [2020-09-25 04:21:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:20,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 04:21:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 04:21:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:20,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:20,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:20,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:20,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:20,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:20,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:20,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:20,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:20,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:20,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:20,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:20,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:20,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-09-25 04:21:20,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:20,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 04:21:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 04:21:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:20,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:20,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:21,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:21,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:21,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:21,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 04:21:21,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:21,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:21,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:21,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:21,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:21,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 04:21:21,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:21,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:21,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:21,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:21,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:21,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:21,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:21,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 04:21:21,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:21,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:21,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:21,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:22,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:22,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:22,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 04:21:22,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:22,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:22,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:22,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:22,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:22,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:22,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:22,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:22,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 04:21:22,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:22,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:22,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:22,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:22,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:22,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:22,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:21:22,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:22,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:22,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:22,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:22,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:22,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:21:22,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:22,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 137 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-25 04:21:22,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638371375] [2020-09-25 04:21:22,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:22,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 04:21:22,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566184366] [2020-09-25 04:21:22,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:21:22,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:21:22,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:21:22,469 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states. [2020-09-25 04:21:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:22,703 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 04:21:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:21:22,704 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-25 04:21:22,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:22,707 INFO L225 Difference]: With dead ends: 66 [2020-09-25 04:21:22,708 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 04:21:22,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:21:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 04:21:22,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 04:21:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 04:21:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-25 04:21:22,725 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-25 04:21:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:22,729 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-25 04:21:22,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:21:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-25 04:21:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 04:21:22,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:22,736 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:22,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:21:22,737 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:22,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-25 04:21:22,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:22,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135131532] [2020-09-25 04:21:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:22,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:23,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:25,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:25,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 04:21:25,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3221 [2020-09-25 04:21:25,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:25,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:21:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 04:21:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:26,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:26,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:26,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:26,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:26,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:26,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:26,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:26,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:26,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:26,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:26,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:26,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 04:21:26,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-25 04:21:26,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:26,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:21:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:21:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:26,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:26,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:27,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:27,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:27,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:27,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-09-25 04:21:27,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:27,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:27,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 04:21:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:27,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:27,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:27,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:27,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:27,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 04:21:27,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:27,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:27,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:27,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:27,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:27,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:27,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:27,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:27,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 04:21:27,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:27,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:27,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:28,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:28,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:28,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:28,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 04:21:28,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:28,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:28,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:28,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:28,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:28,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 04:21:28,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:28,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:28,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:28,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:28,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:21:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:28,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:28,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:28,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:21:28,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:28,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 30 proven. 177 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-25 04:21:28,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135131532] [2020-09-25 04:21:28,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:28,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 04:21:28,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075696956] [2020-09-25 04:21:28,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 04:21:28,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:28,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 04:21:28,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:21:28,349 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 14 states. [2020-09-25 04:21:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:28,494 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 04:21:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:21:28,494 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-09-25 04:21:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:28,496 INFO L225 Difference]: With dead ends: 71 [2020-09-25 04:21:28,496 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 04:21:28,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:21:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 04:21:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-25 04:21:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 04:21:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-25 04:21:28,504 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-25 04:21:28,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:28,504 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-25 04:21:28,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 04:21:28,505 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-25 04:21:28,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 04:21:28,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:28,506 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:28,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:21:28,506 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:28,507 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-25 04:21:28,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:28,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150664192] [2020-09-25 04:21:28,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:28,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:29,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1949 [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:30,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 04:21:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 04:21:30,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:30,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:30,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:30,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:30,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:30,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:30,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:30,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:31,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 04:21:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 04:21:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:31,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:31,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 04:21:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:21:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:31,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:31,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:31,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 04:21:31,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:31,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:31,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:32,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:32,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:32,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:32,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:32,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 04:21:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:32,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:32,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:32,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:32,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:32,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:32,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 04:21:32,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:32,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:32,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:32,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:32,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:32,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:32,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 04:21:32,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:32,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:32,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:33,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:21:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:33,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:33,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:33,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:33,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:33,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:33,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:33,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 24 proven. 244 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-09-25 04:21:33,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150664192] [2020-09-25 04:21:33,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:33,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 04:21:33,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337208676] [2020-09-25 04:21:33,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 04:21:33,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:33,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 04:21:33,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:21:33,129 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-25 04:21:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:33,340 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-25 04:21:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:21:33,342 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-25 04:21:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:33,343 INFO L225 Difference]: With dead ends: 76 [2020-09-25 04:21:33,344 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 04:21:33,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:21:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 04:21:33,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 04:21:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 04:21:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 04:21:33,351 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-25 04:21:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:33,352 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 04:21:33,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 04:21:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 04:21:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-25 04:21:33,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:33,353 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:33,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:21:33,354 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:33,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:33,354 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-25 04:21:33,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:33,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082447515] [2020-09-25 04:21:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:33,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:36,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:36,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 04:21:36,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:36,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3096 [2020-09-25 04:21:36,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:36,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:21:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 04:21:36,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:36,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:36,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:36,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:36,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:36,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 04:21:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:37,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 04:21:37,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-09-25 04:21:37,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:21:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:37,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:21:37,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:37,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:38,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:38,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:21:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:21:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:38,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:38,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:38,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:38,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 04:21:38,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:38,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:38,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:38,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 04:21:38,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:39,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 04:21:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:39,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:39,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 04:21:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:39,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:39,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 04:21:39,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:39,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 04:21:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:40,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 04:21:40,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:40,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:40,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 04:21:40,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:21:40,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 18 proven. 296 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-09-25 04:21:40,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082447515] [2020-09-25 04:21:40,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:40,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 04:21:40,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353234580] [2020-09-25 04:21:40,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 04:21:40,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:40,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 04:21:40,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:21:40,432 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-25 04:21:40,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:40,659 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-25 04:21:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:21:40,660 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-09-25 04:21:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:40,661 INFO L225 Difference]: With dead ends: 81 [2020-09-25 04:21:40,662 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 04:21:40,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:21:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 04:21:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-25 04:21:40,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 04:21:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-25 04:21:40,670 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 108 [2020-09-25 04:21:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:40,670 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-25 04:21:40,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 04:21:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-25 04:21:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-25 04:21:40,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:40,672 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:40,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:21:40,672 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:40,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:40,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1749540651, now seen corresponding path program 11 times [2020-09-25 04:21:40,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:40,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372704147] [2020-09-25 04:21:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:41,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:44,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:44,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 04:21:44,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:44,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4244 [2020-09-25 04:21:44,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:44,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 04:21:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 04:21:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:44,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:44,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:44,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:44,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:44,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:44,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:44,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:44,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:44,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:44,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:44,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:44,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 04:21:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:21:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:45,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 04:21:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:46,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:47,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 04:21:47,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:47,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:21:47,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:47,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:21:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:21:47,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:47,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:47,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 04:21:48,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:48,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 04:21:48,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:48,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:49,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:49,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 04:21:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:49,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 04:21:49,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:49,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 04:21:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:49,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:21:49,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:21:49,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:21:49,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 30 proven. 367 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-09-25 04:21:49,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372704147] [2020-09-25 04:21:49,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:49,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 04:21:49,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415079140] [2020-09-25 04:21:49,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 04:21:49,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:49,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 04:21:49,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:21:49,336 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 17 states. [2020-09-25 04:21:49,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:49,588 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-25 04:21:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:21:49,589 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-09-25 04:21:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:49,591 INFO L225 Difference]: With dead ends: 86 [2020-09-25 04:21:49,591 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 04:21:49,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 04:21:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 04:21:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-25 04:21:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 04:21:49,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-25 04:21:49,600 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 117 [2020-09-25 04:21:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:49,600 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-25 04:21:49,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 04:21:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-25 04:21:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-25 04:21:49,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:49,602 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:49,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:21:49,603 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:49,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:49,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1141580405, now seen corresponding path program 12 times [2020-09-25 04:21:49,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:49,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368952819] [2020-09-25 04:21:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:53,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3641 [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:21:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 04:21:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:53,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:53,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:54,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 04:21:55,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-09-25 04:21:55,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:21:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 04:21:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 04:21:55,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-25 04:21:55,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:21:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 04:21:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 04:21:56,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-09-25 04:21:56,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:21:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:21:56,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:56,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:21:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:21:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 04:21:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 04:21:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:57,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:21:58,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:58,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 04:21:58,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 04:21:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:58,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:58,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 04:21:58,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:58,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:58,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:21:58,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 04:21:58,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:58,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:21:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:58,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:21:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking...