/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:27,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:27,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:28,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:28,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:28,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:28,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:28,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:28,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:28,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:28,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:28,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:28,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:28,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:28,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:28,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:28,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:28,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:28,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:28,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:28,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:28,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:28,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:28,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:28,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:28,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:28,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:28,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:28,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:28,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:28,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:28,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:28,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:28,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:28,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:28,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:28,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:28,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:28,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:28,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:28,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:28,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:11:28,115 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:28,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:28,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:28,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:28,119 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:28,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:28,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:28,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:28,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:28,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:28,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:28,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:28,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:28,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:28,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:28,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:28,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:28,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:28,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:28,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:28,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:28,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:28,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:28,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:28,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:28,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:28,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:28,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:28,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:28,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:11:28,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:28,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:28,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:28,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:28,660 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:28,662 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-2.c [2020-09-25 03:11:28,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5cbcec32/31bdbffd5d404027b74cb980d237fcbc/FLAG50f397ad0 [2020-09-25 03:11:29,265 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:29,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-2.c [2020-09-25 03:11:29,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5cbcec32/31bdbffd5d404027b74cb980d237fcbc/FLAG50f397ad0 [2020-09-25 03:11:29,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5cbcec32/31bdbffd5d404027b74cb980d237fcbc [2020-09-25 03:11:29,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:29,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:29,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:29,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:29,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:29,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2719192c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29, skipping insertion in model container [2020-09-25 03:11:29,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:29,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:29,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:29,924 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:29,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:29,962 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:29,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29 WrapperNode [2020-09-25 03:11:29,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:29,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:29,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:29,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:29,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... [2020-09-25 03:11:29,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:29,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:29,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:29,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:29,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 03:11:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:11:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 03:11:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:30,337 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:30,338 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:30,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:30 BoogieIcfgContainer [2020-09-25 03:11:30,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:30,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:30,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:30,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:30,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:29" (1/3) ... [2020-09-25 03:11:30,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9ea42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:30, skipping insertion in model container [2020-09-25 03:11:30,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:29" (2/3) ... [2020-09-25 03:11:30,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9ea42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:30, skipping insertion in model container [2020-09-25 03:11:30,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:30" (3/3) ... [2020-09-25 03:11:30,361 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-2.c [2020-09-25 03:11:30,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:30,384 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:30,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:30,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:30,453 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:30,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:30,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:30,454 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:30,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:30,454 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:30,454 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 03:11:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:30,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:30,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:30,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:30,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 03:11:30,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:30,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589266581] [2020-09-25 03:11:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:30,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 03:11:30,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 03:11:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:11:30,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:30,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:30,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:30,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:30,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:30,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:30,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:11:30,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:11:31,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589266581] [2020-09-25 03:11:31,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:31,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:31,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681854540] [2020-09-25 03:11:31,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:31,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:31,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:31,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:31,040 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 03:11:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:31,136 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 03:11:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:31,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:31,163 INFO L225 Difference]: With dead ends: 37 [2020-09-25 03:11:31,163 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 03:11:31,173 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 03:11:31,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 03:11:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 03:11:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 03:11:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 03:11:31,262 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 03:11:31,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:31,264 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 03:11:31,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 03:11:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 03:11:31,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:31,269 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 03:11:31,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:31,270 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:31,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:31,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 03:11:31,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:31,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114316275] [2020-09-25 03:11:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 03:11:31,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-25 03:11:31,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 03:11:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:11:31,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:31,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:31,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:31,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:31,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:31,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:31,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:31,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:11:31,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:31,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,970 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 03:11:31,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114316275] [2020-09-25 03:11:31,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:31,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:11:31,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648829435] [2020-09-25 03:11:31,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:11:31,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:31,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:11:31,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:11:31,975 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 03:11:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:32,058 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 03:11:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:11:32,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 03:11:32,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:32,060 INFO L225 Difference]: With dead ends: 34 [2020-09-25 03:11:32,060 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 03:11:32,063 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 03:11:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 03:11:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 03:11:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:11:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 03:11:32,083 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 03:11:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:32,083 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 03:11:32,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:11:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 03:11:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 03:11:32,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:32,086 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 03:11:32,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:32,088 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:32,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 03:11:32,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:32,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962064525] [2020-09-25 03:11:32,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:11:32,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:32,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-09-25 03:11:32,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:32,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-25 03:11:32,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:32,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:32,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:32,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:32,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 03:11:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:33,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:11:33,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:33,055 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 03:11:33,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962064525] [2020-09-25 03:11:33,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:33,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:11:33,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466747061] [2020-09-25 03:11:33,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:11:33,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:11:33,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:33,066 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 9 states. [2020-09-25 03:11:33,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:33,174 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 03:11:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:11:33,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-09-25 03:11:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:33,177 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:11:33,177 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 03:11:33,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:11:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 03:11:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 03:11:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 03:11:33,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 03:11:33,193 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 03:11:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:33,193 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 03:11:33,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:11:33,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 03:11:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 03:11:33,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:33,198 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 03:11:33,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:33,199 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:33,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:33,199 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 03:11:33,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:33,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147724361] [2020-09-25 03:11:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:34,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 914 [2020-09-25 03:11:34,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 03:11:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:11:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:34,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 03:11:34,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:34,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:34,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:34,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 03:11:34,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:34,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:11:34,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:34,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:34,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:11:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:34,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,624 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 03:11:34,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147724361] [2020-09-25 03:11:34,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:34,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:34,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729233502] [2020-09-25 03:11:34,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:34,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:34,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:34,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:34,632 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 11 states. [2020-09-25 03:11:34,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:34,750 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 03:11:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:11:34,754 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-09-25 03:11:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:34,756 INFO L225 Difference]: With dead ends: 44 [2020-09-25 03:11:34,756 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 03:11:34,758 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 03:11:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 03:11:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 03:11:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 03:11:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 03:11:34,772 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 03:11:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:34,772 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 03:11:34,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 03:11:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 03:11:34,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:34,778 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 03:11:34,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:34,779 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 03:11:34,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:34,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798369629] [2020-09-25 03:11:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:11:36,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:36,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1440 [2020-09-25 03:11:36,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 03:11:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:11:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:36,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:36,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:36,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:36,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 03:11:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 03:11:36,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:36,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:36,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 03:11:36,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:11:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:11:36,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,866 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 03:11:36,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798369629] [2020-09-25 03:11:36,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:36,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:11:36,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979604374] [2020-09-25 03:11:36,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:11:36,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:36,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:11:36,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:11:36,869 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 13 states. [2020-09-25 03:11:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:36,992 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 03:11:36,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:11:36,992 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-09-25 03:11:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:36,994 INFO L225 Difference]: With dead ends: 49 [2020-09-25 03:11:36,994 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 03:11:36,995 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 03:11:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 03:11:37,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 03:11:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 03:11:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 03:11:37,002 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 03:11:37,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:37,003 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 03:11:37,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:11:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 03:11:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:11:37,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:37,005 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 03:11:37,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:11:37,005 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 03:11:37,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:37,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499541805] [2020-09-25 03:11:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:37,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 03:11:39,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:39,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2181 [2020-09-25 03:11:39,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:11:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 03:11:39,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:11:39,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:39,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:39,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:39,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:39,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 03:11:39,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:11:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:39,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 03:11:39,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:39,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:39,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:11:39,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:39,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 03:11:39,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:39,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:39,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:11:39,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:40,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:40,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:40,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:40,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:40,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:11:40,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:40,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:40,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:40,063 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 03:11:40,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499541805] [2020-09-25 03:11:40,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:40,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:11:40,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000786505] [2020-09-25 03:11:40,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:11:40,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:40,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:11:40,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:11:40,066 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 15 states. [2020-09-25 03:11:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:40,204 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 03:11:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 03:11:40,205 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-09-25 03:11:40,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:40,206 INFO L225 Difference]: With dead ends: 54 [2020-09-25 03:11:40,207 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 03:11:40,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:11:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 03:11:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 03:11:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 03:11:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 03:11:40,215 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 03:11:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:40,215 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 03:11:40,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:11:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 03:11:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 03:11:40,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:40,217 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 03:11:40,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:11:40,217 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:40,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 03:11:40,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:40,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408548463] [2020-09-25 03:11:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:40,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:11:42,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2692 [2020-09-25 03:11:42,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 03:11:42,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 03:11:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:42,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:42,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 03:11:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:11:43,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:43,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 03:11:43,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:11:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 03:11:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:43,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:11:43,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:43,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:43,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 03:11:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:43,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:43,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:11:43,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:43,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:43,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:43,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:43,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:11:43,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:43,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:44,028 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 03:11:44,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408548463] [2020-09-25 03:11:44,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:44,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:11:44,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378830420] [2020-09-25 03:11:44,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:11:44,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:44,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:11:44,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:11:44,031 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-09-25 03:11:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:44,180 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 03:11:44,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 03:11:44,180 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2020-09-25 03:11:44,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:44,182 INFO L225 Difference]: With dead ends: 59 [2020-09-25 03:11:44,182 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 03:11:44,183 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 03:11:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 03:11:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 03:11:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 03:11:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 03:11:44,190 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 03:11:44,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:44,191 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 03:11:44,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:11:44,191 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 03:11:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 03:11:44,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:44,192 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 03:11:44,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:11:44,193 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:44,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 03:11:44,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:44,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671533142] [2020-09-25 03:11:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:47,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 03:11:47,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:47,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3425 [2020-09-25 03:11:47,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 03:11:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:11:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:47,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:47,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:47,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:11:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:48,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 03:11:48,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:11:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:48,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 03:11:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:11:48,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 03:11:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:48,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 03:11:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:48,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:11:48,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,034 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 03:11:49,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671533142] [2020-09-25 03:11:49,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:49,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 03:11:49,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291359276] [2020-09-25 03:11:49,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 03:11:49,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:49,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 03:11:49,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:11:49,037 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 19 states. [2020-09-25 03:11:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:49,200 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 03:11:49,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:11:49,200 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2020-09-25 03:11:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:49,202 INFO L225 Difference]: With dead ends: 64 [2020-09-25 03:11:49,202 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 03:11:49,203 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 03:11:49,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 03:11:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 03:11:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 03:11:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 03:11:49,209 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 03:11:49,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:49,210 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 03:11:49,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 03:11:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 03:11:49,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 03:11:49,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:49,211 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 03:11:49,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:11:49,212 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 03:11:49,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:49,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273761656] [2020-09-25 03:11:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:53,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:53,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 03:11:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4333 [2020-09-25 03:11:53,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:11:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 03:11:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 03:11:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:53,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:53,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:53,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:53,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:54,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-09-25 03:11:54,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:11:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:54,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:11:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:54,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:11:54,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 03:11:54,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:11:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:54,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:11:54,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 03:11:54,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:11:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:11:55,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 03:11:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:11:55,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 03:11:55,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:55,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:11:55,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 03:11:55,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:11:55,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:11:55,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:11:55,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:11:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:55,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:55,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,451 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 03:11:55,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273761656] [2020-09-25 03:11:55,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:55,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 03:11:55,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644016906] [2020-09-25 03:11:55,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 03:11:55,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:55,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 03:11:55,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:11:55,453 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 21 states. [2020-09-25 03:11:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:55,628 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 03:11:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 03:11:55,628 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 80 [2020-09-25 03:11:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:55,630 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:11:55,630 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 03:11:55,633 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 03:11:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 03:11:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 03:11:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 03:11:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 03:11:55,645 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 03:11:55,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:55,645 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 03:11:55,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 03:11:55,646 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 03:11:55,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 03:11:55,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:55,647 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 03:11:55,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:11:55,648 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:55,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:55,648 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 03:11:55,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:55,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248535537] [2020-09-25 03:11:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:12:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 03:12:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:12:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:00,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:00,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:00,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:00,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:12:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:00,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:12:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:12:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:01,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:01,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:12:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:12:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:12:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:12:02,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 03:12:02,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:12:02,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:12:02,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:12:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:12:02,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 03:12:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:12:02,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:12:02,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:12:02,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:12:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:02,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:02,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:02,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:02,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:12:02,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:02,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:02,936 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 03:12:02,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248535537] [2020-09-25 03:12:02,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:02,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:12:02,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764740470] [2020-09-25 03:12:02,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:12:02,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:02,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:12:02,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:12:02,941 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-09-25 03:12:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:03,185 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 03:12:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 03:12:03,185 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2020-09-25 03:12:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:03,187 INFO L225 Difference]: With dead ends: 74 [2020-09-25 03:12:03,187 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 03:12:03,188 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 03:12:03,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 03:12:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 03:12:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 03:12:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 03:12:03,194 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 03:12:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:03,195 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 03:12:03,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:12:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 03:12:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 03:12:03,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:03,196 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 03:12:03,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:12:03,196 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:03,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:03,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 03:12:03,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:03,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283414914] [2020-09-25 03:12:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:03,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:08,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:08,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 03:12:08,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:12:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:08,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:08,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:08,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:08,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:08,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:08,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:12:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:08,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:08,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:12:08,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:08,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-09-25 03:12:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:08,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 03:12:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:08,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:09,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:09,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:09,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:12:09,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:09,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 03:12:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:12:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:09,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:09,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:09,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:09,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:12:09,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:09,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 03:12:09,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:12:09,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:09,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:09,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:12:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:12:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:12:10,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:12:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:12:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:12:10,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 03:12:10,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:12:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:12:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:12:10,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:10,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:10,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:10,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:12:10,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:10,906 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 03:12:10,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283414914] [2020-09-25 03:12:10,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:10,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 03:12:10,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081524598] [2020-09-25 03:12:10,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 03:12:10,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:10,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 03:12:10,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:12:10,908 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-09-25 03:12:11,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:11,167 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 03:12:11,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 03:12:11,167 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-09-25 03:12:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:11,169 INFO L225 Difference]: With dead ends: 79 [2020-09-25 03:12:11,169 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 03:12:11,172 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 03:12:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 03:12:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 03:12:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 03:12:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 03:12:11,178 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 03:12:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:11,178 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 03:12:11,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 03:12:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 03:12:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 03:12:11,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:11,180 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 03:12:11,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:12:11,180 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:11,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 03:12:11,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:11,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806534704] [2020-09-25 03:12:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:11,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:11,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 03:12:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:12:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:12:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 03:12:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 03:12:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:16,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:16,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:12:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:17,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:12:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-09-25 03:12:17,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:12:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 03:12:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:17,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:17,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 03:12:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:17,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:18,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:18,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 03:12:18,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:12:18,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:18,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:18,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:18,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:12:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:18,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:18,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:18,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:18,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:12:18,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:12:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:18,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:12:19,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:12:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:12:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:12:19,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 03:12:19,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:12:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:12:19,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:12:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:12:19,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:12:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:12:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:12:19,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:12:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:12:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:19,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:19,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:19,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:12:19,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:12:19,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:12:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:12:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:19,912 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 03:12:19,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806534704] [2020-09-25 03:12:19,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:19,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 03:12:19,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857456416] [2020-09-25 03:12:19,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 03:12:19,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:19,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 03:12:19,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-09-25 03:12:19,915 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 27 states. [2020-09-25 03:12:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:20,172 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 03:12:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 03:12:20,173 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 104 [2020-09-25 03:12:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:20,174 INFO L225 Difference]: With dead ends: 84 [2020-09-25 03:12:20,174 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 03:12:20,176 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 03:12:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 03:12:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 03:12:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 03:12:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 03:12:20,182 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 03:12:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:20,183 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 03:12:20,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 03:12:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 03:12:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 03:12:20,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:20,184 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 03:12:20,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:12:20,185 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:20,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:20,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 03:12:20,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:20,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250013061] [2020-09-25 03:12:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:20,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 03:12:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:25,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:25,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:25,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:25,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:12:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:25,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 909 [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:26,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:12:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 03:12:26,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:26,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:26,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:26,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:26,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 03:12:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:26,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:12:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:26,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking...