/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/Fibonacci05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:18:10,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:18:10,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:18:10,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:18:10,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:18:10,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:18:10,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:18:10,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:18:10,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:18:10,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:18:10,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:18:10,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:18:10,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:18:10,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:18:10,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:18:10,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:18:10,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:18:10,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:18:10,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:18:10,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:18:10,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:18:10,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:18:10,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:18:10,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:18:10,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:18:10,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:18:10,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:18:10,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:18:10,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:18:10,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:18:10,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:18:10,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:18:10,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:18:10,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:18:10,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:18:10,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:18:10,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:18:10,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:18:10,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:18:10,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:18:10,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:18:10,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:18:10,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:18:10,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:18:10,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:18:10,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:18:10,389 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:18:10,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:18:10,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:18:10,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:18:10,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:18:10,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:18:10,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:18:10,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:18:10,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:18:10,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:18:10,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:18:10,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:18:10,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:18:10,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:18:10,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:18:10,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:18:10,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:18:10,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:18:10,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:18:10,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:18:10,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:18:10,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:18:10,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:18:10,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:18:10,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:18:10,396 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:18:10,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:18:10,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:18:10,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:18:10,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:18:10,933 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:18:10,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-24 19:18:11,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a03f799d9/4df93dcb3bbc4e40b5b1aefaf438a22b/FLAGbe45b2711 [2020-09-24 19:18:11,590 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:18:11,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci05.c [2020-09-24 19:18:11,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a03f799d9/4df93dcb3bbc4e40b5b1aefaf438a22b/FLAGbe45b2711 [2020-09-24 19:18:11,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a03f799d9/4df93dcb3bbc4e40b5b1aefaf438a22b [2020-09-24 19:18:11,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:18:11,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:18:11,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:18:11,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:18:11,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:18:11,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:18:11" (1/1) ... [2020-09-24 19:18:11,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1922398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:11, skipping insertion in model container [2020-09-24 19:18:11,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:18:11" (1/1) ... [2020-09-24 19:18:12,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:18:12,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:18:12,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:18:12,248 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:18:12,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:18:12,281 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:18:12,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12 WrapperNode [2020-09-24 19:18:12,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:18:12,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:18:12,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:18:12,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:18:12,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... [2020-09-24 19:18:12,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:18:12,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:18:12,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:18:12,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:18:12,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:18:12,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:18:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:18:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-24 19:18:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:18:12,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:18:12,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:18:12,481 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-24 19:18:12,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:18:12,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:18:12,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:18:12,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:18:12,707 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 19:18:12,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:18:12 BoogieIcfgContainer [2020-09-24 19:18:12,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:18:12,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:18:12,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:18:12,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:18:12,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:18:11" (1/3) ... [2020-09-24 19:18:12,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47991101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:18:12, skipping insertion in model container [2020-09-24 19:18:12,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:12" (2/3) ... [2020-09-24 19:18:12,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47991101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:18:12, skipping insertion in model container [2020-09-24 19:18:12,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:18:12" (3/3) ... [2020-09-24 19:18:12,725 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci05.c [2020-09-24 19:18:12,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:18:12,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:18:12,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:18:12,825 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:18:12,826 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:18:12,826 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:18:12,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:18:12,826 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:18:12,826 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:18:12,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:18:12,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:18:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-24 19:18:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 19:18:12,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:12,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:12,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:12,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-24 19:18:12,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:12,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009942706] [2020-09-24 19:18:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:18:13,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 19:18:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 19:18:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:18:13,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:13,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:13,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:13,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:18:13,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:18:13,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009942706] [2020-09-24 19:18:13,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:18:13,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:18:13,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502431137] [2020-09-24 19:18:13,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:18:13,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:13,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:18:13,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:18:13,350 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-24 19:18:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:13,489 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-24 19:18:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:18:13,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-24 19:18:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:13,508 INFO L225 Difference]: With dead ends: 48 [2020-09-24 19:18:13,508 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 19:18:13,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:18:13,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 19:18:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 19:18:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 19:18:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-24 19:18:13,583 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-24 19:18:13,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:13,584 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-24 19:18:13,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:18:13,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-24 19:18:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 19:18:13,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:13,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:13,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:18:13,588 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:13,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:13,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-24 19:18:13,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:13,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423389813] [2020-09-24 19:18:13,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 19:18:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 19:18:13,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 19:18:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:13,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:13,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:18:13,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:13,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:13,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:13,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:13,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:13,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 19:18:13,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:18:13,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423389813] [2020-09-24 19:18:13,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:18:13,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:18:13,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262256411] [2020-09-24 19:18:13,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:18:13,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:13,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:18:13,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:18:13,892 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-24 19:18:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:13,973 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-24 19:18:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:18:13,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-24 19:18:13,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:13,975 INFO L225 Difference]: With dead ends: 38 [2020-09-24 19:18:13,976 INFO L226 Difference]: Without dead ends: 32 [2020-09-24 19:18:13,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:18:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-24 19:18:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-24 19:18:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 19:18:13,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-24 19:18:13,985 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-24 19:18:13,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:13,986 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-24 19:18:13,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:18:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-24 19:18:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 19:18:13,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:13,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:13,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:18:13,989 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:13,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:13,989 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-24 19:18:13,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:13,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159074779] [2020-09-24 19:18:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:14,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:18:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-09-24 19:18:14,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:18:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:14,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:18:14,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:14,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:14,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:14,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:18:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:18:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:18:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:14,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:14,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:14,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:18:14,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:14,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:18:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:14,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:14,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:14,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:14,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:14,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:14,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:18:14,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 19:18:14,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159074779] [2020-09-24 19:18:14,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:14,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:18:14,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84133384] [2020-09-24 19:18:14,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:18:14,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:14,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:18:14,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:18:14,840 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 6 states. [2020-09-24 19:18:14,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:14,958 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2020-09-24 19:18:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:18:14,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 19:18:14,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:14,960 INFO L225 Difference]: With dead ends: 54 [2020-09-24 19:18:14,960 INFO L226 Difference]: Without dead ends: 32 [2020-09-24 19:18:14,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:18:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-24 19:18:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-24 19:18:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-24 19:18:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-09-24 19:18:14,971 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 35 [2020-09-24 19:18:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:14,971 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-09-24 19:18:14,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:18:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-09-24 19:18:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 19:18:14,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:14,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:14,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:18:14,974 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:14,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-24 19:18:14,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:14,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715300664] [2020-09-24 19:18:14,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:15,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:18:15,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-09-24 19:18:15,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:18:15,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:15,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:15,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:15,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:15,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:15,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:15,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:15,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:15,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-24 19:18:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:15,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:15,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:18:15,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:15,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:15,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:15,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:15,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:15,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:18:15,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 19:18:15,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715300664] [2020-09-24 19:18:15,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:15,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:15,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353008204] [2020-09-24 19:18:15,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:15,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:15,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:15,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:15,774 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-09-24 19:18:15,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:15,931 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2020-09-24 19:18:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:18:15,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-24 19:18:15,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:15,934 INFO L225 Difference]: With dead ends: 72 [2020-09-24 19:18:15,934 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 19:18:15,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:18:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 19:18:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-24 19:18:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 19:18:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-09-24 19:18:15,947 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 36 [2020-09-24 19:18:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:15,947 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-09-24 19:18:15,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-09-24 19:18:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 19:18:15,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:15,951 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:15,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:18:15,951 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:15,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:15,952 INFO L82 PathProgramCache]: Analyzing trace with hash 331377205, now seen corresponding path program 2 times [2020-09-24 19:18:15,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:15,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168482487] [2020-09-24 19:18:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:15,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 19:18:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:18:16,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:16,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:18:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:16,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:16,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:16,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:16,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:16,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:16,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:16,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:16,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:16,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:16,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:17,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:17,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:18,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:18:18,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:18,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:18,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:18,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:18:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:18,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:18,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:18,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:18,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:18,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:18,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:18,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:18,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:18,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:18,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:18,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:18,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:18,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:18,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 19:18:18,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168482487] [2020-09-24 19:18:18,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:18,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:18,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463623418] [2020-09-24 19:18:18,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:18,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:18,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:18,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:18,143 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 7 states. [2020-09-24 19:18:18,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:18,225 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2020-09-24 19:18:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:18:18,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 19:18:18,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:18,228 INFO L225 Difference]: With dead ends: 62 [2020-09-24 19:18:18,228 INFO L226 Difference]: Without dead ends: 56 [2020-09-24 19:18:18,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:18:18,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-24 19:18:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-09-24 19:18:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 19:18:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-09-24 19:18:18,240 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 53 [2020-09-24 19:18:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:18,240 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-09-24 19:18:18,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-09-24 19:18:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 19:18:18,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:18,243 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:18,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:18:18,244 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash -2068833840, now seen corresponding path program 3 times [2020-09-24 19:18:18,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:18,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769897176] [2020-09-24 19:18:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:18,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:18,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:19,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:19,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 19:18:19,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:19,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:19,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:18:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:19,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:19,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:19,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:19,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:19,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:19,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:20,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:18:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:18:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:20,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:20,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:20,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:20,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:20,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:18:20,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:20,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:20,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:20,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:20,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:20,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:20,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:20,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:20,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:20,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:20,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:20,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:20,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:20,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:20,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:20,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:20,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:18:20,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:20,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:20,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:20,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 19:18:20,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769897176] [2020-09-24 19:18:20,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:20,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:20,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359703443] [2020-09-24 19:18:20,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:20,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:20,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:20,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:20,454 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 7 states. [2020-09-24 19:18:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:20,583 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2020-09-24 19:18:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:18:20,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2020-09-24 19:18:20,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:20,585 INFO L225 Difference]: With dead ends: 62 [2020-09-24 19:18:20,585 INFO L226 Difference]: Without dead ends: 56 [2020-09-24 19:18:20,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:18:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-24 19:18:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-09-24 19:18:20,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 19:18:20,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-09-24 19:18:20,595 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 54 [2020-09-24 19:18:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:20,596 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-09-24 19:18:20,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-09-24 19:18:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 19:18:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:20,599 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:20,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:18:20,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:20,600 INFO L82 PathProgramCache]: Analyzing trace with hash -911174345, now seen corresponding path program 4 times [2020-09-24 19:18:20,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:20,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285030586] [2020-09-24 19:18:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:20,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:21,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 19:18:21,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:18:21,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 19:18:21,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 19:18:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:18:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:21,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:21,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:22,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:22,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:18:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:18:22,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-24 19:18:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:18:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:18:22,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:22,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:22,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:22,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:22,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:22,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:22,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:22,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:22,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:22,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:22,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:22,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:22,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:22,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:22,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:22,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:23,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:23,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:23,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-24 19:18:23,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:23,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:18:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:23,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:23,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:23,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:18:23,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:23,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:23,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:23,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:23,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:23,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 19:18:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:23,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:23,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:23,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:18:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:23,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:23,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:23,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:23,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:18:23,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:23,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 94 proven. 17 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 19:18:23,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285030586] [2020-09-24 19:18:23,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:23,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:23,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056798016] [2020-09-24 19:18:23,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:23,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:23,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:23,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:23,436 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 7 states. [2020-09-24 19:18:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:23,622 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2020-09-24 19:18:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:18:23,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-24 19:18:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:23,624 INFO L225 Difference]: With dead ends: 91 [2020-09-24 19:18:23,624 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 19:18:23,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:18:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 19:18:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-24 19:18:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:18:23,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-09-24 19:18:23,637 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 89 [2020-09-24 19:18:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:23,637 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-09-24 19:18:23,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-09-24 19:18:23,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 19:18:23,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:23,639 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:23,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:18:23,639 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:23,640 INFO L82 PathProgramCache]: Analyzing trace with hash 4423077, now seen corresponding path program 5 times [2020-09-24 19:18:23,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:23,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069987918] [2020-09-24 19:18:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:23,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 19:18:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:18:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 19:18:24,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:18:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:18:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:24,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:24,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:24,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:24,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:24,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:25,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:25,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:25,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:25,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:18:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:25,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:25,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:25,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:26,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:26,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-24 19:18:26,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:26,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:26,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:26,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:26,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:18:26,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:18:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:26,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:26,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:26,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:26,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:26,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:26,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:26,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:27,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:27,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:18:27,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:27,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:27,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:27,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:27,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:18:27,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:27,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:27,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:27,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:27,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:27,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:18:27,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:27,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:27,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:27,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:27,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:27,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:27,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:27,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:27,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:27,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:18:27,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:27,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 55 proven. 74 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-24 19:18:27,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069987918] [2020-09-24 19:18:27,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:27,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:18:27,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683978164] [2020-09-24 19:18:27,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:18:27,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:27,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:18:27,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:18:27,551 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 8 states. [2020-09-24 19:18:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:27,744 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2020-09-24 19:18:27,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:18:27,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-09-24 19:18:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:27,746 INFO L225 Difference]: With dead ends: 93 [2020-09-24 19:18:27,747 INFO L226 Difference]: Without dead ends: 59 [2020-09-24 19:18:27,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:18:27,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-24 19:18:27,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2020-09-24 19:18:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 19:18:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-09-24 19:18:27,761 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 89 [2020-09-24 19:18:27,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:27,763 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-09-24 19:18:27,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:18:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-09-24 19:18:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-24 19:18:27,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:27,767 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:27,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:18:27,767 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:27,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 6 times [2020-09-24 19:18:27,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:27,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128968912] [2020-09-24 19:18:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:27,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-24 19:18:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:18:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:18:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:28,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:28,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:28,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:28,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:28,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:28,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:28,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:28,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:28,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 19:18:29,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:18:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 19:18:29,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:18:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:29,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:29,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:29,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:18:29,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:29,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:29,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:29,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:18:29,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:29,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:29,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:29,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:29,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:29,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:29,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:29,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:29,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:29,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:29,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:29,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:29,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:29,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:30,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:30,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:30,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:30,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:18:30,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:18:30,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:18:30,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:30,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:30,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:31,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:31,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:31,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:31,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:31,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:31,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:18:31,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:31,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:31,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:31,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:18:31,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:32,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:32,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:32,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:18:32,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:32,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:32,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:32,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:32,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:32,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:32,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:32,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:18:32,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:32,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:32,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:32,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:32,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:18:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:32,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:32,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:18:32,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:32,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:18:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:32,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:32,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 220 proven. 10 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-09-24 19:18:32,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128968912] [2020-09-24 19:18:32,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:32,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:18:32,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090495822] [2020-09-24 19:18:32,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:18:32,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:32,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:18:32,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:18:32,302 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 8 states. [2020-09-24 19:18:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:32,591 INFO L93 Difference]: Finished difference Result 100 states and 121 transitions. [2020-09-24 19:18:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:18:32,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-09-24 19:18:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:32,595 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:18:32,595 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 19:18:32,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:18:32,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 19:18:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 19:18:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 19:18:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2020-09-24 19:18:32,613 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 125 [2020-09-24 19:18:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:32,614 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2020-09-24 19:18:32,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:18:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2020-09-24 19:18:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 19:18:32,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:32,617 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:32,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:18:32,618 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:32,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1344272854, now seen corresponding path program 7 times [2020-09-24 19:18:32,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:32,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884114332] [2020-09-24 19:18:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:33,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-24 19:18:33,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:33,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:18:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:18:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:33,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:33,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:33,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:33,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:33,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:33,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:33,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:33,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:33,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:33,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:34,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:18:34,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 19:18:34,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:34,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:34,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:34,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:18:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:34,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:34,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:34,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:18:35,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:18:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:35,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:35,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:35,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:35,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:18:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:35,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:35,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:35,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:35,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:35,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:35,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:35,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:35,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:35,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:35,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:18:35,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:35,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:36,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:36,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:36,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:36,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:18:36,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:36,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:36,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:36,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:18:36,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 128 proven. 69 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-09-24 19:18:36,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884114332] [2020-09-24 19:18:36,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:36,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:18:36,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068224252] [2020-09-24 19:18:36,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:18:36,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:36,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:18:36,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:18:36,998 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 9 states. [2020-09-24 19:18:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:37,152 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2020-09-24 19:18:37,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:18:37,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-09-24 19:18:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:37,155 INFO L225 Difference]: With dead ends: 110 [2020-09-24 19:18:37,155 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 19:18:37,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:18:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 19:18:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2020-09-24 19:18:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-24 19:18:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2020-09-24 19:18:37,164 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 107 [2020-09-24 19:18:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:37,164 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2020-09-24 19:18:37,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:18:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2020-09-24 19:18:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 19:18:37,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:37,166 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:37,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:18:37,167 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:37,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:37,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1005193447, now seen corresponding path program 8 times [2020-09-24 19:18:37,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:37,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538911193] [2020-09-24 19:18:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 19:18:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:38,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:38,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:18:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:39,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:18:39,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:39,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:39,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:39,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:18:39,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:39,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:39,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:39,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:39,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:39,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:39,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:39,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:18:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:39,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:39,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:18:39,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:39,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:39,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 78 proven. 25 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-09-24 19:18:39,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538911193] [2020-09-24 19:18:39,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:39,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:39,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439813497] [2020-09-24 19:18:39,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:39,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:39,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:39,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:39,639 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 7 states. [2020-09-24 19:18:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:39,761 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-09-24 19:18:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:18:39,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-09-24 19:18:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:39,764 INFO L225 Difference]: With dead ends: 69 [2020-09-24 19:18:39,764 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 19:18:39,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:18:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 19:18:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-24 19:18:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 19:18:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-09-24 19:18:39,783 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 89 [2020-09-24 19:18:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:39,785 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-09-24 19:18:39,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-09-24 19:18:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:18:39,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:39,790 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:39,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:18:39,790 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash -311463261, now seen corresponding path program 9 times [2020-09-24 19:18:39,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:39,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006565058] [2020-09-24 19:18:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-24 19:18:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:18:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 19:18:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:40,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:40,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:40,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:41,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:18:41,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:41,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:18:41,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:41,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:18:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:41,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:41,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:41,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 19:18:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:18:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:41,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:41,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:41,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:41,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:41,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:18:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:42,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:42,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:42,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:42,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:42,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:18:42,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:42,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:42,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:42,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:42,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:42,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:42,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:42,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:42,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:18:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:42,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:43,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:43,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:43,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:18:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:43,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:43,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:43,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:43,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:43,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:43,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:43,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:43,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:43,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:43,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:43,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:43,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:43,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:43,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 175 proven. 44 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2020-09-24 19:18:43,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006565058] [2020-09-24 19:18:43,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:43,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:18:43,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530823727] [2020-09-24 19:18:43,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:43,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:43,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:43,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:43,189 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 7 states. [2020-09-24 19:18:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:43,301 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2020-09-24 19:18:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:18:43,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-09-24 19:18:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:43,303 INFO L225 Difference]: With dead ends: 75 [2020-09-24 19:18:43,303 INFO L226 Difference]: Without dead ends: 69 [2020-09-24 19:18:43,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:18:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-24 19:18:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2020-09-24 19:18:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 19:18:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-09-24 19:18:43,320 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 142 [2020-09-24 19:18:43,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:43,320 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-09-24 19:18:43,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-09-24 19:18:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 19:18:43,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:43,325 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:43,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:18:43,325 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:43,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1759669632, now seen corresponding path program 10 times [2020-09-24 19:18:43,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:43,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17491401] [2020-09-24 19:18:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:44,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-09-24 19:18:44,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:44,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:44,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:44,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:44,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:44,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:44,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:44,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:44,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:44,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:44,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:45,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:18:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-24 19:18:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:45,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:45,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:45,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:46,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:18:46,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:18:46,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:18:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:18:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:18:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:46,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:18:46,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:46,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:46,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:46,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:46,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:46,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:46,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:46,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:46,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:46,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:18:46,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:46,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:46,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:46,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:46,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:46,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:18:46,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:18:46,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:18:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:46,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:47,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:18:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:47,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:18:47,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:47,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:47,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:47,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:47,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:47,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:47,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:47,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:47,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:47,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:47,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:47,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:47,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:47,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:47,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:47,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:47,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:48,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:48,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:48,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:48,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:48,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:48,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:18:48,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:48,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:48,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:48,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:48,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:48,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:48,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 306 proven. 212 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-09-24 19:18:48,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17491401] [2020-09-24 19:18:48,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:48,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 19:18:48,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217417208] [2020-09-24 19:18:48,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 19:18:48,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:48,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 19:18:48,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:18:48,226 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 13 states. [2020-09-24 19:18:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:48,913 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2020-09-24 19:18:48,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:18:48,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 177 [2020-09-24 19:18:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:48,918 INFO L225 Difference]: With dead ends: 154 [2020-09-24 19:18:48,918 INFO L226 Difference]: Without dead ends: 87 [2020-09-24 19:18:48,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2020-09-24 19:18:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-24 19:18:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-09-24 19:18:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 19:18:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2020-09-24 19:18:48,929 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 96 transitions. Word has length 177 [2020-09-24 19:18:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:48,930 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 96 transitions. [2020-09-24 19:18:48,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 19:18:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 96 transitions. [2020-09-24 19:18:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-24 19:18:48,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:48,933 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:48,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:18:48,934 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:48,934 INFO L82 PathProgramCache]: Analyzing trace with hash 764562375, now seen corresponding path program 11 times [2020-09-24 19:18:48,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:48,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084972530] [2020-09-24 19:18:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:49,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:49,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:49,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:49,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-09-24 19:18:49,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:18:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:18:49,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:18:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 19:18:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 19:18:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:51,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-09-24 19:18:51,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:18:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-24 19:18:51,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 19:18:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:51,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-09-24 19:18:51,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:51,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:51,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:52,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:18:52,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:18:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:52,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:18:52,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:52,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:18:52,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:52,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:52,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:52,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:52,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:52,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:18:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:52,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:53,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:53,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:18:53,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:53,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:53,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:53,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:53,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:53,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:18:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:53,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:53,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:53,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:53,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:53,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:53,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:53,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:53,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:53,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:53,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:53,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:53,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:53,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:18:53,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:53,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:18:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:53,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:53,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 19:18:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:54,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:55,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:18:55,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:18:55,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:18:55,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:18:55,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:55,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:55,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:55,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:55,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:55,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:55,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:18:55,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 19:18:55,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:18:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:55,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:18:55,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:55,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:55,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:18:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:18:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:18:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 19:18:56,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:18:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:18:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:56,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:56,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:56,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:56,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:56,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:56,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:18:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 848 proven. 320 refuted. 0 times theorem prover too weak. 1397 trivial. 0 not checked. [2020-09-24 19:18:56,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084972530] [2020-09-24 19:18:56,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:56,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 19:18:56,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994945195] [2020-09-24 19:18:56,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:18:56,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:56,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:18:56,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:18:56,236 INFO L87 Difference]: Start difference. First operand 81 states and 96 transitions. Second operand 15 states. [2020-09-24 19:18:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:56,858 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2020-09-24 19:18:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:18:56,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 265 [2020-09-24 19:18:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:56,861 INFO L225 Difference]: With dead ends: 170 [2020-09-24 19:18:56,861 INFO L226 Difference]: Without dead ends: 97 [2020-09-24 19:18:56,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:18:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-24 19:18:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2020-09-24 19:18:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 19:18:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2020-09-24 19:18:56,881 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 265 [2020-09-24 19:18:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:56,882 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2020-09-24 19:18:56,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 19:18:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2020-09-24 19:18:56,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:18:56,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:56,890 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:56,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:18:56,891 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:56,891 INFO L82 PathProgramCache]: Analyzing trace with hash -753564480, now seen corresponding path program 12 times [2020-09-24 19:18:56,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:56,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921534273] [2020-09-24 19:18:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:56,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:57,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-09-24 19:18:57,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:57,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:57,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:57,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:18:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:58,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:58,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:58,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:58,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-24 19:18:58,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 19:18:59,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:18:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:59,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:18:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:18:59,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:18:59,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:18:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:59,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:18:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:59,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:18:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:59,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:18:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:59,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:19:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:19:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:19:00,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:00,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:00,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:00,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:19:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:00,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 19:19:00,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:19:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:19:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:00,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:00,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:00,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:00,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 450 proven. 102 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2020-09-24 19:19:00,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921534273] [2020-09-24 19:19:00,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:00,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:19:00,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520152585] [2020-09-24 19:19:00,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:19:00,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:00,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:19:00,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:00,758 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand 9 states. [2020-09-24 19:19:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:00,929 INFO L93 Difference]: Finished difference Result 97 states and 113 transitions. [2020-09-24 19:19:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:19:00,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-24 19:19:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:00,932 INFO L225 Difference]: With dead ends: 97 [2020-09-24 19:19:00,933 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 19:19:00,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:19:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 19:19:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-09-24 19:19:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-24 19:19:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 107 transitions. [2020-09-24 19:19:00,941 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 107 transitions. Word has length 230 [2020-09-24 19:19:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:00,942 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 107 transitions. [2020-09-24 19:19:00,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:19:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 107 transitions. [2020-09-24 19:19:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-09-24 19:19:00,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:00,950 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:00,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 19:19:00,950 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:00,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1790891897, now seen corresponding path program 13 times [2020-09-24 19:19:00,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:00,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833455460] [2020-09-24 19:19:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:01,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:02,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:19:02,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 444 [2020-09-24 19:19:02,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:02,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:02,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:02,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:02,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:02,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:02,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:02,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:02,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:02,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 19:19:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:02,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:02,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:02,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:02,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:03,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 444 [2020-09-24 19:19:03,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:19:03,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-09-24 19:19:03,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:03,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:19:03,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:03,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 441 [2020-09-24 19:19:03,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:03,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:03,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 19:19:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-24 19:19:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:04,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:04,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:19:05,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:19:05,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 19:19:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:19:05,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:19:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:19:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:19:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:05,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:05,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:05,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:05,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:05,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:05,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:05,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:05,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:19:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:05,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking...