/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:25,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:25,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:25,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:25,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:25,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:25,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:25,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:25,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:25,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:25,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:26,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:26,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:26,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:26,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:26,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:26,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:26,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:26,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:26,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:26,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:26,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:26,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:26,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:26,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:26,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:26,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:26,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:26,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:26,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:26,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:26,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:26,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:26,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:26,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:26,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:26,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:26,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:26,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:26,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:26,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:26,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:08:26,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:26,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:26,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:26,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:26,087 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:26,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:26,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:26,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:26,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:26,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:26,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:26,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:26,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:26,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:26,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:26,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:26,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:26,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:26,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:26,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:26,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:26,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:26,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:26,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:26,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:26,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:26,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:26,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:26,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:26,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:08:26,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:26,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:26,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:26,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:26,545 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:26,546 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 03:08:26,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37628a591/d6589ee2f7ab46c9901c57cdd6d477e5/FLAG497d4354a [2020-09-25 03:08:27,137 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:27,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 03:08:27,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37628a591/d6589ee2f7ab46c9901c57cdd6d477e5/FLAG497d4354a [2020-09-25 03:08:27,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37628a591/d6589ee2f7ab46c9901c57cdd6d477e5 [2020-09-25 03:08:27,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:27,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:27,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:27,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:27,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:27,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425b51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27, skipping insertion in model container [2020-09-25 03:08:27,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:27,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:27,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:27,785 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:27,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:27,815 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:27,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27 WrapperNode [2020-09-25 03:08:27,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:27,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:27,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:27,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:27,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... [2020-09-25 03:08:27,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:27,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:27,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:27,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:27,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 03:08:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 03:08:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:28,210 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:28,210 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:28,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:28 BoogieIcfgContainer [2020-09-25 03:08:28,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:28,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:28,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:28,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:28,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:27" (1/3) ... [2020-09-25 03:08:28,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39849e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:28, skipping insertion in model container [2020-09-25 03:08:28,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:27" (2/3) ... [2020-09-25 03:08:28,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39849e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:28, skipping insertion in model container [2020-09-25 03:08:28,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:28" (3/3) ... [2020-09-25 03:08:28,224 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-09-25 03:08:28,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:28,246 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:28,268 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:28,297 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:28,297 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:28,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:28,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:28,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:28,298 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:28,298 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:28,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 03:08:28,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 03:08:28,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:28,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:28,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:28,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:28,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 03:08:28,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:28,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192991340] [2020-09-25 03:08:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:08:28,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 03:08:28,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:08:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:08:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:28,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:28,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:28,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:28,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:08:28,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:28,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:28,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192991340] [2020-09-25 03:08:28,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:28,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:28,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704768130] [2020-09-25 03:08:28,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:28,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:28,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:28,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:28,780 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 03:08:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:28,916 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 03:08:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:28,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 03:08:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:28,934 INFO L225 Difference]: With dead ends: 48 [2020-09-25 03:08:28,934 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 03:08:28,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 03:08:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 03:08:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 03:08:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 03:08:28,999 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 03:08:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:28,999 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 03:08:28,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 03:08:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:08:29,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:29,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:29,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:08:29,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:29,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 03:08:29,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:29,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961449255] [2020-09-25 03:08:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:08:29,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 03:08:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:08:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:08:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:29,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:29,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:29,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961449255] [2020-09-25 03:08:29,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:29,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:29,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281652062] [2020-09-25 03:08:29,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:29,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:29,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:29,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:29,255 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 03:08:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:29,353 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 03:08:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:29,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 03:08:29,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:29,356 INFO L225 Difference]: With dead ends: 38 [2020-09-25 03:08:29,356 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 03:08:29,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 03:08:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 03:08:29,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 03:08:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 03:08:29,375 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 03:08:29,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:29,375 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 03:08:29,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 03:08:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:08:29,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:29,379 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] [2020-09-25 03:08:29,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:08:29,380 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:29,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:29,380 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 03:08:29,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:29,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031504139] [2020-09-25 03:08:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:29,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 03:08:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:08:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:08:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:29,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:29,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:30,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:30,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 03:08:30,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:30,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:08:30,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:30,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:30,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:08:30,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:30,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031504139] [2020-09-25 03:08:30,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:30,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:30,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212253781] [2020-09-25 03:08:30,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:30,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:30,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:30,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:30,192 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2020-09-25 03:08:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:30,318 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-09-25 03:08:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:30,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 03:08:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:30,320 INFO L225 Difference]: With dead ends: 68 [2020-09-25 03:08:30,320 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 03:08:30,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 03:08:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 03:08:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 03:08:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 03:08:30,346 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 35 [2020-09-25 03:08:30,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:30,349 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 03:08:30,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 03:08:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 03:08:30,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:30,351 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] [2020-09-25 03:08:30,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:08:30,352 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 03:08:30,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:30,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961965358] [2020-09-25 03:08:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:08:30,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:30,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 03:08:30,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:08:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:30,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:31,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 03:08:31,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:31,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:31,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:31,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:08:31,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:31,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:31,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:31,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:31,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961965358] [2020-09-25 03:08:31,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:31,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:31,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942084733] [2020-09-25 03:08:31,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:31,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:31,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:31,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:31,255 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-09-25 03:08:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:31,366 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2020-09-25 03:08:31,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:08:31,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 03:08:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:31,369 INFO L225 Difference]: With dead ends: 56 [2020-09-25 03:08:31,369 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 03:08:31,370 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 [2020-09-25 03:08:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 03:08:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-25 03:08:31,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 03:08:31,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-09-25 03:08:31,380 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 36 [2020-09-25 03:08:31,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:31,380 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-09-25 03:08:31,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-09-25 03:08:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 03:08:31,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:31,383 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:31,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:08:31,384 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:31,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1970096676, now seen corresponding path program 2 times [2020-09-25 03:08:31,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:31,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27352943] [2020-09-25 03:08:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:08:35,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4043 [2020-09-25 03:08:35,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:08:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:08:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:35,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:35,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:35,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:35,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:35,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:35,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:08:36,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:08:36,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1170 [2020-09-25 03:08:36,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:08:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:36,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:36,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:36,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:36,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 03:08:36,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:08:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:36,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:36,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:36,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:36,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:36,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:36,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:36,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:36,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:36,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:36,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:36,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:36,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:08:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:36,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:36,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:08:36,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 03:08:36,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27352943] [2020-09-25 03:08:36,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:36,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 03:08:36,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174257105] [2020-09-25 03:08:36,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:08:36,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:36,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:08:36,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:36,796 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 6 states. [2020-09-25 03:08:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:36,877 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2020-09-25 03:08:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:08:36,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 03:08:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:36,881 INFO L225 Difference]: With dead ends: 62 [2020-09-25 03:08:36,881 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 03:08:36,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 03:08:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2020-09-25 03:08:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 03:08:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-09-25 03:08:36,898 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 52 [2020-09-25 03:08:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:36,899 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-09-25 03:08:36,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:08:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-09-25 03:08:36,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 03:08:36,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:36,902 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:36,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:08:36,903 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:36,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:36,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1801616585, now seen corresponding path program 2 times [2020-09-25 03:08:36,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:36,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856713619] [2020-09-25 03:08:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:36,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 03:08:41,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:08:41,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 03:08:41,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:41,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:08:41,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 03:08:41,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:41,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:41,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:41,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:41,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:08:47,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:08:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 03:08:47,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:47,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:08:47,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 03:08:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:47,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:47,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 03:08:47,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:47,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:47,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:47,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:47,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:47,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:47,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:08:47,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:47,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:47,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:47,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:08:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:08:49,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 03:08:49,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2000 [2020-09-25 03:08:49,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:08:49,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:49,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:49,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 03:08:49,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:49,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:49,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:08:49,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:49,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:49,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:49,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:08:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:49,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:49,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 68 proven. 71 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-25 03:08:49,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856713619] [2020-09-25 03:08:49,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:49,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:08:49,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855699333] [2020-09-25 03:08:49,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:08:49,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:49,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:08:49,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:08:49,571 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 10 states. [2020-09-25 03:08:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:49,857 INFO L93 Difference]: Finished difference Result 102 states and 149 transitions. [2020-09-25 03:08:49,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:08:49,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 03:08:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:49,859 INFO L225 Difference]: With dead ends: 102 [2020-09-25 03:08:49,859 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 03:08:49,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:08:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 03:08:49,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2020-09-25 03:08:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 03:08:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2020-09-25 03:08:49,880 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 87 [2020-09-25 03:08:49,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:49,882 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2020-09-25 03:08:49,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:08:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2020-09-25 03:08:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 03:08:49,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:49,887 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:49,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:08:49,887 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:49,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:49,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1419436827, now seen corresponding path program 1 times [2020-09-25 03:08:49,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:49,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12342720] [2020-09-25 03:08:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 03:08:54,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 03:08:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:08:54,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:08:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:08:54,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:54,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:08:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 03:08:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:08:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:08:59,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:08:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:08:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:09:00,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 03:09:00,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:09:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:00,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:00,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 03:09:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:05,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:09:05,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:09:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:05,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:05,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:05,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 03:09:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:05,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:09:05,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:05,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 77 proven. 76 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 03:09:05,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12342720] [2020-09-25 03:09:05,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:05,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:09:05,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172947475] [2020-09-25 03:09:05,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:09:05,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:09:05,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:09:05,498 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 9 states. [2020-09-25 03:09:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:05,789 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2020-09-25 03:09:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:09:05,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-09-25 03:09:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:05,791 INFO L225 Difference]: With dead ends: 115 [2020-09-25 03:09:05,792 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 03:09:05,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:09:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 03:09:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2020-09-25 03:09:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 03:09:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2020-09-25 03:09:05,809 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 91 [2020-09-25 03:09:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:05,812 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2020-09-25 03:09:05,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:09:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2020-09-25 03:09:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 03:09:05,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:05,816 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] [2020-09-25 03:09:05,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:09:05,816 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:05,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:05,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 3 times [2020-09-25 03:09:05,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:05,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415648031] [2020-09-25 03:09:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-25 03:09:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 03:09:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:09:10,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:09:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:09:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:09:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:10,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:09:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:15,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 03:09:15,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 03:09:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:09:15,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:09:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:09:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:09:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:15,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:15,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:09:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:09:17,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:09:17,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:17,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:17,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:17,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:17,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:09:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:09:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:19,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:19,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:20,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:22,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:09:22,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 03:09:22,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:09:22,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:09:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:09:22,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:22,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:22,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:22,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking...