/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:03:54,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:03:54,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:03:54,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:03:54,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:03:54,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:03:54,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:03:54,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:03:54,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:03:54,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:03:54,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:03:54,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:03:54,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:03:54,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:03:54,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:03:54,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:03:54,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:03:54,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:03:54,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:03:54,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:03:54,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:03:54,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:03:54,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:03:54,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:03:54,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:03:54,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:03:54,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:03:54,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:03:54,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:03:54,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:03:54,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:03:54,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:03:54,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:03:54,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:03:54,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:03:54,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:03:54,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:03:54,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:03:54,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:03:54,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:03:54,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:03:54,389 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 02:03:54,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:03:54,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:03:54,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:03:54,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:03:54,416 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:03:54,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:03:54,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:03:54,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:03:54,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:03:54,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:03:54,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:03:54,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:03:54,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:03:54,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:03:54,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:03:54,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:03:54,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:03:54,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:03:54,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:03:54,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:03:54,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:03:54,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:03:54,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:03:54,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:03:54,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:03:54,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:03:54,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:03:54,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:03:54,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:03:54,422 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:03:54,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:03:54,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:03:54,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:03:54,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:03:54,904 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:03:54,905 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-25 02:03:54,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0923148de/2ea7562942e94c10bc53593828f76bf0/FLAGccaf5c852 [2020-09-25 02:03:55,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:03:55,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-25 02:03:55,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0923148de/2ea7562942e94c10bc53593828f76bf0/FLAGccaf5c852 [2020-09-25 02:03:55,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0923148de/2ea7562942e94c10bc53593828f76bf0 [2020-09-25 02:03:55,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:03:55,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:03:55,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:03:55,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:03:55,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:03:55,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:03:55" (1/1) ... [2020-09-25 02:03:55,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7d2fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:55, skipping insertion in model container [2020-09-25 02:03:55,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:03:55" (1/1) ... [2020-09-25 02:03:55,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:03:55,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:03:56,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:03:56,170 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:03:56,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:03:56,204 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:03:56,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56 WrapperNode [2020-09-25 02:03:56,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:03:56,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:03:56,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:03:56,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:03:56,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (1/1) ... [2020-09-25 02:03:56,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:03:56,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:03:56,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:03:56,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:03:56,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (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 02:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 02:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 02:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:03:56,584 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:03:56,585 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:03:56,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:03:56 BoogieIcfgContainer [2020-09-25 02:03:56,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:03:56,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:03:56,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:03:56,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:03:56,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:03:55" (1/3) ... [2020-09-25 02:03:56,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a690f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:03:56, skipping insertion in model container [2020-09-25 02:03:56,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:56" (2/3) ... [2020-09-25 02:03:56,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a690f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:03:56, skipping insertion in model container [2020-09-25 02:03:56,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:03:56" (3/3) ... [2020-09-25 02:03:56,600 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-09-25 02:03:56,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:03:56,623 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:03:56,647 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:03:56,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:03:56,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:03:56,688 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:03:56,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:03:56,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:03:56,689 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:03:56,689 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:03:56,689 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:03:56,727 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 02:03:56,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 02:03:56,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:56,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:56,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-25 02:03:56,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:56,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083066867] [2020-09-25 02:03:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:56,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:56,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:03:56,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 02:03:56,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:03:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:03:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:03:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:57,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:03:57,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:57,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:03:57,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:57,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,141 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 02:03:57,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083066867] [2020-09-25 02:03:57,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:03:57,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:03:57,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760299418] [2020-09-25 02:03:57,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:03:57,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:03:57,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:03:57,172 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-25 02:03:57,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:57,285 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 02:03:57,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:03:57,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 02:03:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:57,300 INFO L225 Difference]: With dead ends: 37 [2020-09-25 02:03:57,300 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 02:03:57,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 02:03:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 02:03:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-25 02:03:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-25 02:03:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-25 02:03:57,354 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-25 02:03:57,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:57,355 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-25 02:03:57,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:03:57,355 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-25 02:03:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 02:03:57,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:57,358 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:57,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:03:57,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:57,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:57,360 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-25 02:03:57,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:57,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93694168] [2020-09-25 02:03:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:03:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 02:03:57,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:03:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 02:03:57,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:03:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:57,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:57,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:03:57,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:57,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:57,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:03:57,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:03:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:03:57,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93694168] [2020-09-25 02:03:57,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:57,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:03:57,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627432389] [2020-09-25 02:03:57,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:03:57,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:57,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:03:57,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:03:57,890 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-25 02:03:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:57,958 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-25 02:03:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:03:57,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-25 02:03:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:57,961 INFO L225 Difference]: With dead ends: 31 [2020-09-25 02:03:57,961 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 02:03:57,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:03:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 02:03:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 02:03:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 02:03:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 02:03:57,971 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-25 02:03:57,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:57,971 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 02:03:57,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:03:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 02:03:57,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:03:57,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:57,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:57,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:03:57,974 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:57,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:57,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-25 02:03:57,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:57,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089184965] [2020-09-25 02:03:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 02:03:58,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 02:03:58,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:03:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 02:03:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:03:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:03:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:58,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:03:58,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:58,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:58,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 02:03:58,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:58,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 02:03:58,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:58,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:03:58,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 02:03:58,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089184965] [2020-09-25 02:03:58,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:58,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:03:58,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921366028] [2020-09-25 02:03:58,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:03:58,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:58,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:03:58,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:03:58,645 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-25 02:03:58,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:58,749 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-25 02:03:58,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:03:58,749 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-25 02:03:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:58,751 INFO L225 Difference]: With dead ends: 35 [2020-09-25 02:03:58,751 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 02:03:58,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:03:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 02:03:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 02:03:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 02:03:58,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 02:03:58,759 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-25 02:03:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:58,759 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 02:03:58,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:03:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 02:03:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 02:03:58,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:58,761 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:58,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:03:58,762 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-25 02:03:58,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:58,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516191497] [2020-09-25 02:03:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 02:03:58,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 02:03:58,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:03:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 02:03:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:03:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:59,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:03:59,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:59,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:59,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 02:03:59,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:59,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:59,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:59,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:59,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 02:03:59,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:59,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:59,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 02:03:59,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:59,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:03:59,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516191497] [2020-09-25 02:03:59,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:59,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 02:03:59,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409928964] [2020-09-25 02:03:59,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:03:59,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:59,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:03:59,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:03:59,608 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-25 02:03:59,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:59,735 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 02:03:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 02:03:59,736 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 02:03:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:59,737 INFO L225 Difference]: With dead ends: 39 [2020-09-25 02:03:59,737 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 02:03:59,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:03:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 02:03:59,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-25 02:03:59,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 02:03:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 02:03:59,745 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-25 02:03:59,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:59,746 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 02:03:59,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:03:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 02:03:59,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 02:03:59,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:59,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:59,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:03:59,748 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:59,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-25 02:03:59,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:59,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61812580] [2020-09-25 02:03:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 02:04:00,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 02:04:00,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:04:00,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 02:04:00,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:04:00,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:00,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:00,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:00,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:00,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 02:04:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:00,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 02:04:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:00,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 02:04:00,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:00,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:00,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 02:04:00,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:00,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:04:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 02:04:00,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61812580] [2020-09-25 02:04:00,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:00,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 02:04:00,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938590392] [2020-09-25 02:04:00,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 02:04:00,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:00,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 02:04:00,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:04:00,859 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-25 02:04:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:01,081 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-25 02:04:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 02:04:01,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 02:04:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:01,083 INFO L225 Difference]: With dead ends: 43 [2020-09-25 02:04:01,084 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 02:04:01,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:04:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 02:04:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 02:04:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 02:04:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 02:04:01,092 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-25 02:04:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:01,093 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 02:04:01,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 02:04:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 02:04:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 02:04:01,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:01,095 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:01,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:04:01,095 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:01,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-25 02:04:01,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:01,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829714857] [2020-09-25 02:04:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:01,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:01,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:01,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 02:04:01,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 02:04:01,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:04:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 02:04:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:04:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:01,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:01,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:01,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:01,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:01,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:01,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:01,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:01,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:01,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-25 02:04:01,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:01,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:01,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:02,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 02:04:02,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:02,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:02,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 02:04:02,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:02,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:02,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 02:04:02,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:02,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:02,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:04:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:02,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:04:02,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 02:04:02,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829714857] [2020-09-25 02:04:02,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:02,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:04:02,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312589705] [2020-09-25 02:04:02,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:04:02,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:02,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:04:02,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:04:02,619 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-25 02:04:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:02,889 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 02:04:02,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:04:02,890 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-25 02:04:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:02,892 INFO L225 Difference]: With dead ends: 47 [2020-09-25 02:04:02,892 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 02:04:02,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:04:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 02:04:02,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 02:04:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 02:04:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 02:04:02,899 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-25 02:04:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:02,900 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 02:04:02,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:04:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 02:04:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 02:04:02,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:02,902 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:02,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:04:02,902 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:02,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:02,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-25 02:04:02,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:02,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78018915] [2020-09-25 02:04:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:04:03,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-25 02:04:03,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:04:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 02:04:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:04:03,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:03,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:03,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:03,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:03,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-25 02:04:03,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:03,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:03,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:04,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 02:04:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-25 02:04:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:04,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 02:04:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:04,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 02:04:04,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:04,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:04,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:04,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:04:04,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:04,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:04:04,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:04,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:04:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 02:04:05,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78018915] [2020-09-25 02:04:05,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:05,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 02:04:05,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789309589] [2020-09-25 02:04:05,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 02:04:05,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:05,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 02:04:05,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:04:05,014 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-25 02:04:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:05,319 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 02:04:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 02:04:05,319 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-25 02:04:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:05,320 INFO L225 Difference]: With dead ends: 51 [2020-09-25 02:04:05,320 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 02:04:05,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-25 02:04:05,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 02:04:05,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 02:04:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 02:04:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 02:04:05,332 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-25 02:04:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:05,333 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 02:04:05,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 02:04:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 02:04:05,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 02:04:05,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:05,334 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:05,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:04:05,335 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:05,335 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-25 02:04:05,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:05,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902258652] [2020-09-25 02:04:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:05,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 02:04:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 02:04:05,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 02:04:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 02:04:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 02:04:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:06,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:06,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:06,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:06,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:06,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:06,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:06,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-09-25 02:04:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:06,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:06,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:06,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:06,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:06,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 02:04:06,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:06,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:07,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 02:04:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 02:04:07,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:07,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:07,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:07,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 02:04:07,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:07,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:07,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:07,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 02:04:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:07,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:04:07,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:07,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:07,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:04:07,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:07,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 02:04:08,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902258652] [2020-09-25 02:04:08,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:08,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 02:04:08,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885321876] [2020-09-25 02:04:08,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 02:04:08,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:08,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 02:04:08,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-25 02:04:08,006 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-25 02:04:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:08,331 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 02:04:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 02:04:08,331 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-25 02:04:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:08,333 INFO L225 Difference]: With dead ends: 55 [2020-09-25 02:04:08,333 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 02:04:08,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-25 02:04:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 02:04:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 02:04:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 02:04:08,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 02:04:08,340 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-25 02:04:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:08,341 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 02:04:08,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 02:04:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 02:04:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:04:08,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:08,342 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:08,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 02:04:08,343 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-25 02:04:08,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:08,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138147879] [2020-09-25 02:04:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:08,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:09,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 02:04:09,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:09,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-25 02:04:09,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 02:04:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 02:04:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 02:04:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:09,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:09,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:09,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:09,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:09,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:09,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:09,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:09,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:09,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:09,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:09,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:09,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:09,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-09-25 02:04:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:09,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:09,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:10,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-25 02:04:10,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 02:04:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:10,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 02:04:10,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:10,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:11,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:11,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 02:04:11,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:11,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:11,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 02:04:11,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:11,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:11,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:11,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:04:11,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:11,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:11,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:04:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 02:04:11,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138147879] [2020-09-25 02:04:11,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:11,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 02:04:11,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137620275] [2020-09-25 02:04:11,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 02:04:11,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:11,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 02:04:11,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:04:11,677 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 02:04:12,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:12,094 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 02:04:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 02:04:12,095 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 02:04:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:12,096 INFO L225 Difference]: With dead ends: 59 [2020-09-25 02:04:12,096 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 02:04:12,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:04:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 02:04:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 02:04:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 02:04:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-25 02:04:12,110 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-25 02:04:12,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:12,110 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-25 02:04:12,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 02:04:12,111 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-25 02:04:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 02:04:12,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:12,116 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:12,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 02:04:12,117 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:12,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:12,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-25 02:04:12,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:12,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339114321] [2020-09-25 02:04:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:12,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 02:04:12,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:12,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:12,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:12,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:12,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:12,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:13,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:13,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:13,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:13,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-25 02:04:13,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:13,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:13,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:14,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:14,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-25 02:04:14,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:14,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:14,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:14,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 02:04:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 02:04:15,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:15,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 02:04:15,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:15,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:04:15,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:16,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:16,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:16,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:16,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:16,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:04:16,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 02:04:16,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339114321] [2020-09-25 02:04:16,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:16,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 02:04:16,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852962046] [2020-09-25 02:04:16,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 02:04:16,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:16,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 02:04:16,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:04:16,145 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-25 02:04:16,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:16,728 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-25 02:04:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 02:04:16,729 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 02:04:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:16,731 INFO L225 Difference]: With dead ends: 63 [2020-09-25 02:04:16,731 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 02:04:16,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:04:16,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 02:04:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 02:04:16,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 02:04:16,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 02:04:16,739 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-25 02:04:16,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:16,739 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 02:04:16,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 02:04:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 02:04:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 02:04:16,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:16,740 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:16,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 02:04:16,741 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:16,741 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-25 02:04:16,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:16,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981732102] [2020-09-25 02:04:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:16,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:17,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:17,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 02:04:17,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:17,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 02:04:17,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:17,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 02:04:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 02:04:17,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 02:04:17,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:17,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:17,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:17,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:17,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:17,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:17,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:17,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:18,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:18,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:20,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:20,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:20,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:20,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-09-25 02:04:20,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:20,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:20,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:20,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:20,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:20,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:21,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:21,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:21,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:21,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:21,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:21,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:21,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 02:04:21,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:21,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:21,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:21,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:21,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:21,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 02:04:21,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 02:04:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:21,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:21,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:21,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:21,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:04:21,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:21,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:21,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:21,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:21,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 02:04:21,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981732102] [2020-09-25 02:04:21,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:21,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 02:04:21,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394694605] [2020-09-25 02:04:21,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 02:04:21,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:21,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 02:04:21,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:04:21,594 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-25 02:04:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:22,295 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 02:04:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 02:04:22,295 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-25 02:04:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:22,296 INFO L225 Difference]: With dead ends: 67 [2020-09-25 02:04:22,296 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 02:04:22,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 02:04:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 02:04:22,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 02:04:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 02:04:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-25 02:04:22,305 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-25 02:04:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:22,306 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-25 02:04:22,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 02:04:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-25 02:04:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 02:04:22,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:22,307 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:22,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 02:04:22,307 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:22,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:22,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-25 02:04:22,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:22,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968576166] [2020-09-25 02:04:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:22,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 02:04:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 02:04:23,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 02:04:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:23,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:23,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:23,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:24,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:24,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:24,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-09-25 02:04:24,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:25,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:25,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 563 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:25,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:26,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:26,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:26,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:26,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:26,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:26,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:26,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:26,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-25 02:04:26,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:26,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:26,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:26,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:26,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:26,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 02:04:26,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 02:04:27,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:27,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 02:04:27,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:27,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:04:27,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:27,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:27,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:04:27,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:27,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:04:27,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 02:04:28,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968576166] [2020-09-25 02:04:28,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:28,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 02:04:28,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747795917] [2020-09-25 02:04:28,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 02:04:28,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:28,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 02:04:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-25 02:04:28,051 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-25 02:04:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:28,861 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 02:04:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 02:04:28,862 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-25 02:04:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:28,863 INFO L225 Difference]: With dead ends: 71 [2020-09-25 02:04:28,863 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 02:04:28,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 02:04:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 02:04:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 02:04:28,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 02:04:28,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 02:04:28,871 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-25 02:04:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:28,871 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 02:04:28,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 02:04:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 02:04:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 02:04:28,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:28,873 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:28,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 02:04:28,873 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:28,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:28,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-25 02:04:28,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:28,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083627948] [2020-09-25 02:04:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:28,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:30,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:30,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1226 [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:04:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:04:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:30,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:30,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:30,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:30,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:30,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:30,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:30,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:31,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1070 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:04:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:32,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:33,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:33,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:33,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:33,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-25 02:04:33,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:33,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:33,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:33,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:33,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:33,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:33,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-09-25 02:04:33,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:33,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:33,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:34,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:34,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:34,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:34,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:34,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:34,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:34,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:34,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:34,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 02:04:34,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:34,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:34,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:34,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:35,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:35,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:35,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:35,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:35,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:35,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:35,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:35,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 02:04:35,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:35,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:35,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:35,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:35,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:35,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:35,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:35,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:35,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 02:04:35,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:35,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:35,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:36,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:36,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:36,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:36,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:36,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:04:36,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:36,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:36,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:36,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:36,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-25 02:04:36,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083627948] [2020-09-25 02:04:36,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:36,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 02:04:36,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316097904] [2020-09-25 02:04:36,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 02:04:36,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:36,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 02:04:36,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-25 02:04:36,375 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-25 02:04:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:37,360 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-25 02:04:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 02:04:37,361 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-25 02:04:37,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:37,362 INFO L225 Difference]: With dead ends: 75 [2020-09-25 02:04:37,362 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 02:04:37,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 02:04:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 02:04:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 02:04:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 02:04:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 02:04:37,380 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-25 02:04:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:37,381 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 02:04:37,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 02:04:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 02:04:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 02:04:37,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:37,382 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:37,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 02:04:37,383 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:37,383 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-25 02:04:37,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:37,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969465620] [2020-09-25 02:04:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:38,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:38,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1479 [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 02:04:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 02:04:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:38,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:38,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:38,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1314 [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 02:04:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 02:04:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:40,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:40,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:41,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:04:41,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:41,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:42,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:42,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:42,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-09-25 02:04:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:42,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:42,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:43,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:43,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:43,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:43,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:43,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:43,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:43,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:44,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:44,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:44,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:44,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-09-25 02:04:44,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:44,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:44,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:44,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:45,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:45,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:45,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:45,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:45,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:45,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:45,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:45,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:45,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:45,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:45,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 02:04:45,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:45,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:45,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:45,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:45,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 02:04:45,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:45,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:46,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:46,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:46,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:46,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:46,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 02:04:46,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:46,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:46,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:46,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:46,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:46,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:46,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:04:46,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:46,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:46,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:46,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:46,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:46,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:46,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:46,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:04:46,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-25 02:04:46,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969465620] [2020-09-25 02:04:46,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:46,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-25 02:04:46,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101953122] [2020-09-25 02:04:46,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-25 02:04:46,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:46,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-25 02:04:46,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-25 02:04:46,408 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-25 02:04:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:47,479 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 02:04:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-25 02:04:47,480 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-25 02:04:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:47,481 INFO L225 Difference]: With dead ends: 79 [2020-09-25 02:04:47,481 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 02:04:47,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-25 02:04:47,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 02:04:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 02:04:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 02:04:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-25 02:04:47,490 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-25 02:04:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:47,490 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-25 02:04:47,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-25 02:04:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-25 02:04:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 02:04:47,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:47,492 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:47,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 02:04:47,492 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:47,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-25 02:04:47,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:47,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403638900] [2020-09-25 02:04:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:47,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:49,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:49,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 02:04:49,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1829 [2020-09-25 02:04:49,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 02:04:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 02:04:49,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 02:04:49,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:49,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:49,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:49,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:49,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:49,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:49,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:49,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:50,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:50,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 02:04:50,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 02:04:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 02:04:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 02:04:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:52,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:52,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1107 [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 02:04:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:04:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:53,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking...