/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=DEEPEST --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_i25_o25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:55:03,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:55:03,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:55:03,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:55:03,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:55:03,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:55:03,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:55:03,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:55:03,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:55:03,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:55:03,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:55:03,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:55:03,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:55:03,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:55:03,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:55:03,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:55:03,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:55:03,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:55:03,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:55:03,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:55:03,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:55:03,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:55:03,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:55:03,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:55:03,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:55:03,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:55:03,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:55:03,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:55:03,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:55:03,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:55:03,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:55:03,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:55:03,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:55:03,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:55:03,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:55:03,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:55:03,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:55:03,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:55:03,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:55:03,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:55:03,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:55:03,707 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 00:55:03,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:55:03,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:55:03,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:55:03,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:55:03,735 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:55:03,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:55:03,736 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:55:03,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:55:03,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:55:03,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:55:03,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:55:03,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:55:03,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:55:03,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:55:03,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:55:03,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:55:03,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:55:03,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:55:03,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:55:03,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:55:03,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:55:03,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:03,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:55:03,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:55:03,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:55:03,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:55:03,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:55:03,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:55:03,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:55:03,740 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:55:04,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:55:04,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:55:04,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:55:04,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:55:04,301 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:55:04,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-09-25 00:55:04,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f913d918/914e69055ac24aacb80ebd0c7ab45940/FLAGc6f610d2b [2020-09-25 00:55:04,977 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:55:04,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-2.c [2020-09-25 00:55:04,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f913d918/914e69055ac24aacb80ebd0c7ab45940/FLAGc6f610d2b [2020-09-25 00:55:05,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f913d918/914e69055ac24aacb80ebd0c7ab45940 [2020-09-25 00:55:05,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:55:05,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:55:05,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:05,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:55:05,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:55:05,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c096cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05, skipping insertion in model container [2020-09-25 00:55:05,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:55:05,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:55:05,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:05,592 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:55:05,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:05,625 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:55:05,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05 WrapperNode [2020-09-25 00:55:05,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:05,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:55:05,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:55:05,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:55:05,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... [2020-09-25 00:55:05,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:55:05,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:55:05,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:55:05,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:55:05,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:55:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:55:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 00:55:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:55:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:55:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:55:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 00:55:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:55:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:55:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:55:06,044 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:55:06,044 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:55:06,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:06 BoogieIcfgContainer [2020-09-25 00:55:06,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:55:06,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:55:06,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:55:06,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:55:06,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:55:05" (1/3) ... [2020-09-25 00:55:06,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4183dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:06, skipping insertion in model container [2020-09-25 00:55:06,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:05" (2/3) ... [2020-09-25 00:55:06,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4183dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:06, skipping insertion in model container [2020-09-25 00:55:06,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:06" (3/3) ... [2020-09-25 00:55:06,062 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-2.c [2020-09-25 00:55:06,079 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:55:06,090 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:55:06,119 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:55:06,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:55:06,174 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:55:06,174 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:55:06,174 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:55:06,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:55:06,175 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:55:06,175 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:55:06,175 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:55:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 00:55:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 00:55:06,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:06,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:06,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:06,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:06,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 00:55:06,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:06,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323350991] [2020-09-25 00:55:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:55:06,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 00:55:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:55:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 00:55:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:55:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:55:06,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:06,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:55:06,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:06,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:55:06,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:06,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,713 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 00:55:06,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323350991] [2020-09-25 00:55:06,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:55:06,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:55:06,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278933908] [2020-09-25 00:55:06,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:55:06,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:06,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:55:06,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:55:06,747 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 00:55:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:06,835 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 00:55:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:55:06,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 00:55:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:06,851 INFO L225 Difference]: With dead ends: 37 [2020-09-25 00:55:06,851 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 00:55:06,856 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 00:55:06,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 00:55:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 00:55:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 00:55:06,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 00:55:06,912 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 00:55:06,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:06,913 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 00:55:06,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:55:06,913 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 00:55:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 00:55:06,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:06,916 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, 1] [2020-09-25 00:55:06,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:55:06,917 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:06,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 00:55:06,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:06,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449665248] [2020-09-25 00:55:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:55:07,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:07,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 00:55:07,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:55:07,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:55:07,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:55:07,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:07,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:07,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:07,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:07,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:07,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:07,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 00:55:07,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:07,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:07,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:55:07,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:07,577 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 00:55:07,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449665248] [2020-09-25 00:55:07,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:07,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:55:07,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823279144] [2020-09-25 00:55:07,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:55:07,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:07,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:55:07,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:55:07,583 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 00:55:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:07,653 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 00:55:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:55:07,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 00:55:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:07,655 INFO L225 Difference]: With dead ends: 34 [2020-09-25 00:55:07,656 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 00:55:07,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 00:55:07,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 00:55:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 00:55:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 00:55:07,665 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 00:55:07,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:07,666 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 00:55:07,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:55:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 00:55:07,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 00:55:07,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:07,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:07,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:55:07,668 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:07,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:07,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 00:55:07,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:07,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880013139] [2020-09-25 00:55:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-09-25 00:55:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:55:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 00:55:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:55:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:08,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 00:55:08,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:08,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:08,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:55:08,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:08,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:08,552 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 00:55:08,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880013139] [2020-09-25 00:55:08,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:08,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:55:08,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640259837] [2020-09-25 00:55:08,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:55:08,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:08,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:55:08,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:08,557 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 9 states. [2020-09-25 00:55:08,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:08,646 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 00:55:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:55:08,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-09-25 00:55:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:08,648 INFO L225 Difference]: With dead ends: 39 [2020-09-25 00:55:08,648 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:55:08,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:55:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:55:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 00:55:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 00:55:08,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 00:55:08,656 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 00:55:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:08,657 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 00:55:08,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:55:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 00:55:08,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 00:55:08,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:08,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:08,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:55:08,659 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:08,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:08,660 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 00:55:08,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:08,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901296476] [2020-09-25 00:55:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:55:09,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:09,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-09-25 00:55:09,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:55:09,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 00:55:09,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:55:09,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:09,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:09,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:09,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 00:55:09,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:09,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:09,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:09,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:55:09,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:09,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:55:09,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:09,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:55:09,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:09,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 00:55:09,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901296476] [2020-09-25 00:55:09,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:09,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:55:09,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382129153] [2020-09-25 00:55:09,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:55:09,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:09,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:55:09,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:55:09,962 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 11 states. [2020-09-25 00:55:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:10,091 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 00:55:10,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:55:10,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-09-25 00:55:10,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:10,096 INFO L225 Difference]: With dead ends: 44 [2020-09-25 00:55:10,097 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 00:55:10,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:55:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 00:55:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 00:55:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 00:55:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 00:55:10,109 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 00:55:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:10,113 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 00:55:10,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:55:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 00:55:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 00:55:10,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:10,127 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:10,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:55:10,127 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:10,128 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 00:55:10,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:10,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320129116] [2020-09-25 00:55:10,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 00:55:11,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:11,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-09-25 00:55:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 00:55:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 00:55:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:11,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:11,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 00:55:11,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:55:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:12,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:55:12,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:12,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:12,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:55:12,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:12,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:12,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:55:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 00:55:12,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320129116] [2020-09-25 00:55:12,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:12,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 00:55:12,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826064511] [2020-09-25 00:55:12,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 00:55:12,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:12,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 00:55:12,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:55:12,204 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 13 states. [2020-09-25 00:55:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:12,336 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 00:55:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 00:55:12,336 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-09-25 00:55:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:12,338 INFO L225 Difference]: With dead ends: 49 [2020-09-25 00:55:12,338 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 00:55:12,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:55:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 00:55:12,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 00:55:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 00:55:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 00:55:12,347 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 00:55:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:12,347 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 00:55:12,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 00:55:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 00:55:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 00:55:12,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:12,350 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:12,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:55:12,350 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:12,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:12,351 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 00:55:12,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:12,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855821992] [2020-09-25 00:55:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 00:55:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2012 [2020-09-25 00:55:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:55:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 00:55:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:55:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:14,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:14,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:55:14,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:14,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 00:55:14,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:14,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:14,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:14,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 00:55:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:14,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:55:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:14,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:15,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 00:55:15,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:15,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:55:15,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:15,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:15,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:55:15,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 00:55:15,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855821992] [2020-09-25 00:55:15,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:15,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:55:15,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548389893] [2020-09-25 00:55:15,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:55:15,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:15,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:55:15,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:55:15,221 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 15 states. [2020-09-25 00:55:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:15,377 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 00:55:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 00:55:15,377 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-09-25 00:55:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:15,379 INFO L225 Difference]: With dead ends: 54 [2020-09-25 00:55:15,379 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 00:55:15,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:55:15,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 00:55:15,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 00:55:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 00:55:15,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 00:55:15,388 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 00:55:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:15,388 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 00:55:15,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:55:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 00:55:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 00:55:15,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:15,392 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:15,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:55:15,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:15,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:15,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 00:55:15,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:15,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806653507] [2020-09-25 00:55:15,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:55:18,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2682 [2020-09-25 00:55:18,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 00:55:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 00:55:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 00:55:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 00:55:18,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:18,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:18,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:18,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 00:55:18,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:18,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:18,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 00:55:18,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:18,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:18,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:18,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 00:55:18,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:18,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:18,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:18,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:55:18,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:18,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:19,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:19,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:55:19,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:19,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:19,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:55:19,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 00:55:19,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806653507] [2020-09-25 00:55:19,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:19,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 00:55:19,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379934991] [2020-09-25 00:55:19,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 00:55:19,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:19,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 00:55:19,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:55:19,159 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-09-25 00:55:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:19,302 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 00:55:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 00:55:19,303 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2020-09-25 00:55:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:19,304 INFO L225 Difference]: With dead ends: 59 [2020-09-25 00:55:19,304 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 00:55:19,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-09-25 00:55:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 00:55:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 00:55:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 00:55:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 00:55:19,312 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 00:55:19,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:19,313 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 00:55:19,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 00:55:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 00:55:19,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:55:19,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:19,315 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:19,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:55:19,315 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 00:55:19,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:19,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575418341] [2020-09-25 00:55:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:22,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 00:55:22,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3410 [2020-09-25 00:55:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:55:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 00:55:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:55:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:22,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:22,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:22,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:22,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:22,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:22,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:55:22,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:22,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 00:55:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:23,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 00:55:23,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:23,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 00:55:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:24,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:55:24,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:24,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:24,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:55:24,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:24,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:24,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:55:24,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 00:55:24,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575418341] [2020-09-25 00:55:24,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:24,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 00:55:24,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441057200] [2020-09-25 00:55:24,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 00:55:24,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:24,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 00:55:24,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:55:24,217 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-09-25 00:55:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:24,362 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 00:55:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 00:55:24,363 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2020-09-25 00:55:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:24,364 INFO L225 Difference]: With dead ends: 64 [2020-09-25 00:55:24,365 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 00:55:24,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2020-09-25 00:55:24,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 00:55:24,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 00:55:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 00:55:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 00:55:24,372 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 00:55:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:24,373 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 00:55:24,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 00:55:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 00:55:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 00:55:24,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:24,374 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:24,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:55:24,375 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 00:55:24,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:24,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649776812] [2020-09-25 00:55:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4200 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 00:55:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:28,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:28,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:28,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:28,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-25 00:55:28,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:55:28,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:29,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:29,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 00:55:29,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:29,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 00:55:29,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:29,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 00:55:29,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:29,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:30,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:30,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:30,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 00:55:30,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:30,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:30,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:30,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:30,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:30,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:30,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:30,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:55:30,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:30,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:30,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:30,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:30,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:30,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:55:30,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:30,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:30,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:30,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:30,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:30,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:55:30,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:30,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 00:55:30,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649776812] [2020-09-25 00:55:30,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:30,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 00:55:30,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685813946] [2020-09-25 00:55:30,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 00:55:30,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:30,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 00:55:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:55:30,304 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 21 states. [2020-09-25 00:55:30,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:30,506 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 00:55:30,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 00:55:30,506 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 80 [2020-09-25 00:55:30,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:30,508 INFO L225 Difference]: With dead ends: 69 [2020-09-25 00:55:30,508 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 00:55:30,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2020-09-25 00:55:30,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 00:55:30,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 00:55:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 00:55:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 00:55:30,516 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 00:55:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:30,517 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 00:55:30,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 00:55:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 00:55:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 00:55:30,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:30,518 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:30,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:55:30,518 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:30,519 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 00:55:30,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:30,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991913067] [2020-09-25 00:55:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:35,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:35,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 00:55:35,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:55:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:35,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:35,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:35,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:36,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:36,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:36,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-09-25 00:55:36,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 00:55:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:36,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:36,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:55:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:36,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:36,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 00:55:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:36,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:36,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:37,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 00:55:37,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:37,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:37,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:37,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:37,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:37,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:55:37,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:37,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:37,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:55:37,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:37,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:55:37,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 00:55:37,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991913067] [2020-09-25 00:55:37,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:37,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 00:55:37,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340574394] [2020-09-25 00:55:37,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 00:55:37,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:37,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 00:55:37,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:55:37,814 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-09-25 00:55:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:38,062 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 00:55:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 00:55:38,062 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2020-09-25 00:55:38,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:38,065 INFO L225 Difference]: With dead ends: 74 [2020-09-25 00:55:38,065 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 00:55:38,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 00:55:38,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 00:55:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 00:55:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 00:55:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 00:55:38,077 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 00:55:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:38,081 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 00:55:38,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 00:55:38,081 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 00:55:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 00:55:38,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:38,082 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:38,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:55:38,083 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 00:55:38,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:38,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412620595] [2020-09-25 00:55:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:38,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:38,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 00:55:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:43,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:43,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 00:55:43,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:43,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 00:55:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:44,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 00:55:44,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:55:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:45,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:45,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 00:55:45,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:45,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:45,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:55:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:45,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:55:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:45,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:45,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 00:55:45,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412620595] [2020-09-25 00:55:45,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:45,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 00:55:45,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57452580] [2020-09-25 00:55:45,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 00:55:45,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 00:55:45,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:55:45,805 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-09-25 00:55:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:46,046 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 00:55:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 00:55:46,046 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-09-25 00:55:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:46,048 INFO L225 Difference]: With dead ends: 79 [2020-09-25 00:55:46,048 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 00:55:46,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:55:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 00:55:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 00:55:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 00:55:46,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 00:55:46,056 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 00:55:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:46,056 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 00:55:46,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 00:55:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 00:55:46,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 00:55:46,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:46,058 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:46,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:55:46,058 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:46,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:46,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 00:55:46,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:46,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007016366] [2020-09-25 00:55:46,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:46,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 00:55:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:51,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 00:55:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 00:55:52,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:52,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-25 00:55:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 00:55:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:55:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:53,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:53,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:53,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 00:55:53,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:53,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:53,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:53,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:53,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:53,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:53,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 00:55:53,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:53,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:53,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:53,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 00:55:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 00:55:54,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:54,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 00:55:54,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:54,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:54,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 00:55:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:54,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:54,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:55:54,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:54,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:54,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:55:54,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:54,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:55:54,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:55:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:54,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 00:55:54,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007016366] [2020-09-25 00:55:54,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:54,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 00:55:54,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542345632] [2020-09-25 00:55:54,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 00:55:54,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:54,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 00:55:54,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-09-25 00:55:54,736 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 27 states. [2020-09-25 00:55:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:54,976 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 00:55:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 00:55:54,977 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 104 [2020-09-25 00:55:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:54,978 INFO L225 Difference]: With dead ends: 84 [2020-09-25 00:55:54,978 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 00:55:54,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1097, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 00:55:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 00:55:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 00:55:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 00:55:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 00:55:54,990 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 00:55:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:54,991 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 00:55:54,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 00:55:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 00:55:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 00:55:54,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:54,993 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:54,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:55:54,993 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:54,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:54,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 00:55:54,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:54,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070518813] [2020-09-25 00:55:54,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 00:56:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:00,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:56:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:01,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:01,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:56:01,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 00:56:01,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:56:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:01,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 00:56:01,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:01,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:56:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:01,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:56:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 00:56:01,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:01,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:56:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking...