/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 interpolation-heuristic=FIRST --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_i20_o20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:58:57,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:58:57,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:58:57,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:58:57,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:58:57,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:58:57,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:58:57,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:58:57,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:58:57,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:58:57,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:58:57,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:58:57,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:58:57,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:58:57,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:58:57,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:58:57,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:58:57,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:58:57,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:58:57,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:58:57,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:58:57,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:58:57,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:58:57,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:58:57,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:58:57,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:58:57,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:58:57,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:58:57,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:58:57,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:58:57,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:58:57,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:58:57,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:58:57,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:58:57,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:58:57,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:58:57,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:58:57,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:58:57,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:58:57,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:58:57,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:58:57,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:58:57,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:58:57,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:58:57,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:58:57,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:58:57,550 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:58:57,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:58:57,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:58:57,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:58:57,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:58:57,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:58:57,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:58:57,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:58:57,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:58:57,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:58:57,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:58:57,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:58:57,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:58:57,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:58:57,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:58:57,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:58:57,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:58:57,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:58:57,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:58:57,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:58:57,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:58:57,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:58:57,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:58:57,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:58:57,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:58:57,557 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:58:58,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:58:58,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:58:58,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:58:58,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:58:58,069 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:58:58,070 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-09-24 15:58:58,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0963df3b0/01e88fcfed0b4531807e1656805d220f/FLAG9a3335774 [2020-09-24 15:58:58,706 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:58:58,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i20_o20-2.c [2020-09-24 15:58:58,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0963df3b0/01e88fcfed0b4531807e1656805d220f/FLAG9a3335774 [2020-09-24 15:58:59,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0963df3b0/01e88fcfed0b4531807e1656805d220f [2020-09-24 15:58:59,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:58:59,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:58:59,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:59,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:58:59,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:58:59,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7d2fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59, skipping insertion in model container [2020-09-24 15:58:59,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:58:59,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:58:59,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:59,335 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:58:59,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:59,373 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:58:59,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59 WrapperNode [2020-09-24 15:58:59,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:59,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:58:59,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:58:59,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:58:59,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... [2020-09-24 15:58:59,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:58:59,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:58:59,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:58:59,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:58:59,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:58:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 15:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:58:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:58:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:58:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 15:58:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:58:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:58:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:58:59,796 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:58:59,796 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:58:59,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:59 BoogieIcfgContainer [2020-09-24 15:58:59,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:58:59,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:58:59,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:58:59,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:58:59,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:58:59" (1/3) ... [2020-09-24 15:58:59,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2013459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:59, skipping insertion in model container [2020-09-24 15:58:59,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:59" (2/3) ... [2020-09-24 15:58:59,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2013459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:59, skipping insertion in model container [2020-09-24 15:58:59,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:59" (3/3) ... [2020-09-24 15:58:59,812 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i20_o20-2.c [2020-09-24 15:58:59,825 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:58:59,836 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:58:59,860 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:58:59,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:58:59,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:58:59,902 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:58:59,902 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:58:59,902 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:58:59,902 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:58:59,902 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:58:59,902 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:58:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-24 15:58:59,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 15:58:59,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:59,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:59,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:59,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-24 15:58:59,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:59,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366044417] [2020-09-24 15:58:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 15:59:00,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:00,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:00,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:00,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:00,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:00,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:00,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:00,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:59:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:59:00,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366044417] [2020-09-24 15:59:00,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:59:00,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:59:00,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586432615] [2020-09-24 15:59:00,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:59:00,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:00,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:59:00,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:59:00,324 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-24 15:59:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:00,422 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 15:59:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:59:00,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 15:59:00,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:00,439 INFO L225 Difference]: With dead ends: 37 [2020-09-24 15:59:00,439 INFO L226 Difference]: Without dead ends: 23 [2020-09-24 15:59:00,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:59:00,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-24 15:59:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-24 15:59:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-24 15:59:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-24 15:59:00,500 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-24 15:59:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:00,501 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-24 15:59:00,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:59:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-24 15:59:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 15:59:00,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:00,504 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] [2020-09-24 15:59:00,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:59:00,505 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:00,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-24 15:59:00,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:00,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387780245] [2020-09-24 15:59:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-24 15:59:00,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:59:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:00,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:00,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:00,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:00,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:00,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:00,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 15:59:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:00,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:00,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:00,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:59:00,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387780245] [2020-09-24 15:59:00,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:00,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:59:00,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949009111] [2020-09-24 15:59:00,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:59:00,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:00,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:59:00,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:59:00,753 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-24 15:59:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:00,824 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-24 15:59:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:59:00,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-24 15:59:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:00,827 INFO L225 Difference]: With dead ends: 34 [2020-09-24 15:59:00,827 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 15:59:00,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:59:00,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 15:59:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 15:59:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 15:59:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-24 15:59:00,836 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-24 15:59:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:00,837 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-24 15:59:00,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:59:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-24 15:59:00,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 15:59:00,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:00,839 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] [2020-09-24 15:59:00,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:59:00,839 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:00,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-24 15:59:00,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:00,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311266591] [2020-09-24 15:59:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:00,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:00,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:00,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 15:59:00,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:00,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:00,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:00,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:00,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:59:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:01,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:01,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:01,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 15:59:01,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311266591] [2020-09-24 15:59:01,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:01,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:01,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003177074] [2020-09-24 15:59:01,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:01,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:01,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:01,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:01,123 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-24 15:59:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:01,193 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 15:59:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:59:01,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-24 15:59:01,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:01,195 INFO L225 Difference]: With dead ends: 39 [2020-09-24 15:59:01,195 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 15:59:01,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 15:59:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-24 15:59:01,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-24 15:59:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-24 15:59:01,204 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-24 15:59:01,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:01,205 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-24 15:59:01,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-24 15:59:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 15:59:01,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:01,207 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] [2020-09-24 15:59:01,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:59:01,208 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-24 15:59:01,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:01,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450625072] [2020-09-24 15:59:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:59:01,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:01,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 15:59:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:01,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:01,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:01,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 15:59:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,469 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:01,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:01,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:01,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,534 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:01,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 15:59:01,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450625072] [2020-09-24 15:59:01,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:01,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:01,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178078522] [2020-09-24 15:59:01,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:01,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:01,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:01,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:01,563 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 8 states. [2020-09-24 15:59:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:01,641 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-24 15:59:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:59:01,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-09-24 15:59:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:01,644 INFO L225 Difference]: With dead ends: 44 [2020-09-24 15:59:01,644 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 15:59:01,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 15:59:01,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 15:59:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 15:59:01,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 15:59:01,653 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-24 15:59:01,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:01,654 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 15:59:01,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 15:59:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 15:59:01,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:01,656 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] [2020-09-24 15:59:01,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:59:01,656 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:01,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:01,657 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-24 15:59:01,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:01,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899581482] [2020-09-24 15:59:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,695 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,696 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:01,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:01,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:01,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:59:01,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:01,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:01,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:01,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:01,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:01,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:01,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 15:59:01,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:01,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:01,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,847 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:01,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:01,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:01,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:01,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:01,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 15:59:01,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899581482] [2020-09-24 15:59:01,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:01,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:01,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894855815] [2020-09-24 15:59:01,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:01,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:01,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:01,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:01,991 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 11 states. [2020-09-24 15:59:02,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:02,113 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-24 15:59:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:59:02,114 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-24 15:59:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:02,117 INFO L225 Difference]: With dead ends: 49 [2020-09-24 15:59:02,117 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 15:59:02,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:02,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 15:59:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-24 15:59:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 15:59:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-24 15:59:02,131 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-24 15:59:02,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:02,133 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-24 15:59:02,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:02,134 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-24 15:59:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 15:59:02,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:02,137 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] [2020-09-24 15:59:02,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:59:02,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:02,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:02,140 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-24 15:59:02,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:02,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829714857] [2020-09-24 15:59:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 15:59:02,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:02,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:02,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:02,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:02,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:02,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:02,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:02,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:02,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 15:59:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:02,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:02,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:02,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:02,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:02,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:02,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:02,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 15:59:02,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829714857] [2020-09-24 15:59:02,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:02,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:02,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878514862] [2020-09-24 15:59:02,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:02,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:02,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:02,528 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-24 15:59:02,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:02,640 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-24 15:59:02,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:59:02,641 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-24 15:59:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:02,642 INFO L225 Difference]: With dead ends: 54 [2020-09-24 15:59:02,642 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 15:59:02,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 15:59:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 15:59:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 15:59:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-24 15:59:02,650 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-24 15:59:02,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:02,651 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-24 15:59:02,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-24 15:59:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 15:59:02,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:02,653 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] [2020-09-24 15:59:02,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:59:02,653 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:02,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-24 15:59:02,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:02,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441982422] [2020-09-24 15:59:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 15:59:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:02,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:02,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:02,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:02,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:02,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 15:59:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:02,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:02,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:02,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:59:02,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:02,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:02,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:02,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:02,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:03,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:03,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:03,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:03,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:03,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-24 15:59:03,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441982422] [2020-09-24 15:59:03,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:03,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:59:03,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925816939] [2020-09-24 15:59:03,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:59:03,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:03,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:59:03,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:03,115 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 12 states. [2020-09-24 15:59:03,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:03,238 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 15:59:03,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:59:03,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-09-24 15:59:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:03,241 INFO L225 Difference]: With dead ends: 59 [2020-09-24 15:59:03,241 INFO L226 Difference]: Without dead ends: 53 [2020-09-24 15:59:03,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:59:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-24 15:59:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-24 15:59:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 15:59:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-24 15:59:03,249 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-24 15:59:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:03,250 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-24 15:59:03,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:59:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-24 15:59:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 15:59:03,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:03,252 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] [2020-09-24 15:59:03,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:59:03,252 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:03,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:03,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-24 15:59:03,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:03,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304767503] [2020-09-24 15:59:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 15:59:03,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 15:59:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:03,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:03,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:03,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:03,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:59:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:03,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:03,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:03,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:03,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:03,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:03,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:03,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:03,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:03,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,721 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:03,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:03,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:03,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:03,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:03,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:03,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:03,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:03,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-24 15:59:03,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304767503] [2020-09-24 15:59:03,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:03,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:59:03,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798566541] [2020-09-24 15:59:03,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:59:03,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:03,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:59:03,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:03,843 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-24 15:59:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:03,982 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-24 15:59:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:59:03,983 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-24 15:59:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:03,984 INFO L225 Difference]: With dead ends: 64 [2020-09-24 15:59:03,985 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 15:59:03,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 15:59:03,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 15:59:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 15:59:03,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 15:59:03,993 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-24 15:59:03,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:03,993 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 15:59:03,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:59:03,993 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 15:59:03,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 15:59:03,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:03,995 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] [2020-09-24 15:59:03,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:59:03,995 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:03,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:03,996 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-24 15:59:03,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:03,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540481884] [2020-09-24 15:59:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 15:59:04,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:04,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:04,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:04,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:59:04,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:04,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:04,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:04,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:04,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:04,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,277 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:04,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:04,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:04,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:04,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:04,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:04,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:04,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:04,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:04,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:04,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:04,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:04,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:04,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:04,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:04,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:04,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:04,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 24 proven. 169 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-24 15:59:04,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540481884] [2020-09-24 15:59:04,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:04,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:04,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550287786] [2020-09-24 15:59:04,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:04,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:04,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:04,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:04,784 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-24 15:59:04,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:04,969 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-24 15:59:04,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:59:04,970 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-24 15:59:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:04,972 INFO L225 Difference]: With dead ends: 69 [2020-09-24 15:59:04,972 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 15:59:04,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 15:59:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-24 15:59:04,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 15:59:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-24 15:59:04,981 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-24 15:59:04,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:04,982 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-24 15:59:04,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-24 15:59:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-24 15:59:04,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:04,983 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] [2020-09-24 15:59:04,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:59:04,984 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:04,985 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-24 15:59:04,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:04,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314454854] [2020-09-24 15:59:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 15:59:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:05,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:05,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:05,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,283 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:05,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:05,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:05,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:05,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,445 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:05,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:05,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:05,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:05,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:05,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:05,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:05,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:05,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:05,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:05,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:05,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:05,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 40 proven. 203 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 15:59:05,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314454854] [2020-09-24 15:59:05,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:05,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:05,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547036631] [2020-09-24 15:59:05,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:05,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:05,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:05,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:05,811 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-24 15:59:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:05,977 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-24 15:59:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:59:05,978 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-24 15:59:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:05,979 INFO L225 Difference]: With dead ends: 74 [2020-09-24 15:59:05,979 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 15:59:05,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:05,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 15:59:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 15:59:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 15:59:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-24 15:59:05,993 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-24 15:59:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:05,994 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-24 15:59:05,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-24 15:59:05,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-24 15:59:05,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:05,997 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] [2020-09-24 15:59:05,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:59:05,998 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:05,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-24 15:59:05,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:05,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442559250] [2020-09-24 15:59:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-24 15:59:06,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:59:06,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 15:59:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:06,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:06,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:06,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:06,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 15:59:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 15:59:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:06,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 15:59:06,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:06,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:06,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:06,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:06,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:06,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:06,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:06,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:06,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:06,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:06,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:06,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:06,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:06,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:06,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:06,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:06,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:06,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:06,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:06,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 32 proven. 258 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-24 15:59:07,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442559250] [2020-09-24 15:59:07,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:07,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 15:59:07,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487318053] [2020-09-24 15:59:07,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 15:59:07,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:07,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 15:59:07,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:07,036 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-24 15:59:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:07,235 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 15:59:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:59:07,236 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-24 15:59:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:07,238 INFO L225 Difference]: With dead ends: 79 [2020-09-24 15:59:07,238 INFO L226 Difference]: Without dead ends: 73 [2020-09-24 15:59:07,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:59:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-24 15:59:07,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-24 15:59:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 15:59:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-24 15:59:07,257 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-24 15:59:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:07,261 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-24 15:59:07,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 15:59:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-24 15:59:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 15:59:07,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:07,263 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] [2020-09-24 15:59:07,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:59:07,264 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:07,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-24 15:59:07,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:07,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696200863] [2020-09-24 15:59:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-24 15:59:07,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:07,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 15:59:07,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:07,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:07,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 15:59:07,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:07,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 15:59:07,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:07,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:07,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:07,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,951 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:07,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:07,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:07,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:08,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:08,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:08,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:08,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:08,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:08,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 15:59:08,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:08,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:08,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:08,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:08,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:08,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:08,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:08,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:08,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:08,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 18 proven. 330 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-09-24 15:59:08,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696200863] [2020-09-24 15:59:08,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:08,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:59:08,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351413463] [2020-09-24 15:59:08,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:59:08,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:08,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:59:08,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:08,528 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-24 15:59:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:08,731 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-24 15:59:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:59:08,732 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-24 15:59:08,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:08,733 INFO L225 Difference]: With dead ends: 84 [2020-09-24 15:59:08,733 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 15:59:08,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:59:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 15:59:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-24 15:59:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 15:59:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-24 15:59:08,743 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-24 15:59:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:08,744 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-24 15:59:08,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:59:08,744 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-24 15:59:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 15:59:08,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:08,746 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] [2020-09-24 15:59:08,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:59:08,746 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:08,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-24 15:59:08,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:08,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406988292] [2020-09-24 15:59:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:59:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:08,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:09,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 15:59:09,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-24 15:59:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:09,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 15:59:09,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:09,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:09,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:09,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:09,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:09,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:09,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:09,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:09,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:09,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:09,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:09,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:09,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:09,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:09,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:09,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:09,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:09,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:09,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:09,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:09,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:09,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:09,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:09,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:09,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:09,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:09,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:09,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 4 proven. 392 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-24 15:59:10,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406988292] [2020-09-24 15:59:10,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:10,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 15:59:10,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038852368] [2020-09-24 15:59:10,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 15:59:10,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:10,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 15:59:10,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:59:10,076 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-24 15:59:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:10,322 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-24 15:59:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:59:10,322 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-24 15:59:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:10,324 INFO L225 Difference]: With dead ends: 89 [2020-09-24 15:59:10,324 INFO L226 Difference]: Without dead ends: 83 [2020-09-24 15:59:10,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:59:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-24 15:59:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-24 15:59:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-24 15:59:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-24 15:59:10,332 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-24 15:59:10,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:10,332 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-24 15:59:10,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 15:59:10,333 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-24 15:59:10,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-24 15:59:10,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:10,334 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:10,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:59:10,335 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:10,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:10,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-24 15:59:10,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:10,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319107358] [2020-09-24 15:59:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 15:59:10,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 15:59:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:10,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:10,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:59:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 15:59:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:10,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:10,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,983 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:10,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:10,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:10,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:11,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:11,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:11,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:11,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:11,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:11,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:11,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:11,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:11,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:11,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:11,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:11,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:11,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:11,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:11,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:11,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:11,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:11,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:11,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:11,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:11,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:11,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:11,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:11,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:11,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 28 proven. 481 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-09-24 15:59:11,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319107358] [2020-09-24 15:59:11,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:11,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 15:59:11,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246867324] [2020-09-24 15:59:11,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 15:59:11,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:11,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 15:59:11,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-24 15:59:11,928 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-24 15:59:12,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:12,173 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-24 15:59:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:59:12,174 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-24 15:59:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:12,175 INFO L225 Difference]: With dead ends: 94 [2020-09-24 15:59:12,176 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 15:59:12,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 15:59:12,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 15:59:12,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-24 15:59:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-24 15:59:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-24 15:59:12,183 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-24 15:59:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:12,183 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-24 15:59:12,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 15:59:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-24 15:59:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-24 15:59:12,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:12,185 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:12,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:59:12,186 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:12,186 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-24 15:59:12,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:12,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123224504] [2020-09-24 15:59:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:59:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:12,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:12,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:12,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:12,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 15:59:12,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-24 15:59:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:12,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 15:59:12,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:12,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:12,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 15:59:12,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:12,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:12,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:12,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:12,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:13,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:59:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:13,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:13,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:13,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:13,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:59:13,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:13,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:13,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,364 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:13,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:13,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:13,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:13,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:13,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:13,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:13,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:13,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:13,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:13,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:13,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:13,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,639 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:13,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:13,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:13,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:13,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:13,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,832 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 69 proven. 531 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-09-24 15:59:13,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123224504] [2020-09-24 15:59:13,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:13,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:13,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022821405] [2020-09-24 15:59:13,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:13,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:13,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:13,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:13,835 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 21 states. [2020-09-24 15:59:14,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:14,075 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-24 15:59:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:59:14,077 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 128 [2020-09-24 15:59:14,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:14,078 INFO L225 Difference]: With dead ends: 99 [2020-09-24 15:59:14,078 INFO L226 Difference]: Without dead ends: 93 [2020-09-24 15:59:14,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:59:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-24 15:59:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-24 15:59:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 15:59:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-24 15:59:14,090 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-24 15:59:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:14,092 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-24 15:59:14,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-24 15:59:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-24 15:59:14,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:14,094 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:14,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:59:14,094 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-24 15:59:14,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:14,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225803944] [2020-09-24 15:59:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-24 15:59:14,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 15:59:14,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:14,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:14,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 15:59:14,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 15:59:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-24 15:59:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 15:59:14,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:14,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 15:59:14,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:14,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:15,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 15:59:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:15,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:15,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:15,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 15:59:15,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:15,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:15,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:15,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:15,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:15,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:15,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:15,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:15,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:15,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:15,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:15,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:15,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:15,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:15,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:15,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:15,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:15,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:15,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:15,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:15,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:15,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:15,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:15,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:15,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:15,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:15,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:15,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:15,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 23 proven. 631 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-09-24 15:59:16,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225803944] [2020-09-24 15:59:16,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:16,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:16,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313098837] [2020-09-24 15:59:16,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:16,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:16,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:16,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:16,177 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 21 states. [2020-09-24 15:59:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:16,517 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2020-09-24 15:59:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 15:59:16,518 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2020-09-24 15:59:16,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:16,519 INFO L225 Difference]: With dead ends: 104 [2020-09-24 15:59:16,519 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 15:59:16,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 15:59:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 15:59:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-24 15:59:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-24 15:59:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-09-24 15:59:16,526 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 136 [2020-09-24 15:59:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:16,527 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-09-24 15:59:16,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-09-24 15:59:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 15:59:16,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:16,530 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:16,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:59:16,531 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:16,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:16,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2106505265, now seen corresponding path program 16 times [2020-09-24 15:59:16,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:16,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525857018] [2020-09-24 15:59:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 15:59:16,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-24 15:59:16,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:16,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:16,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:16,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:16,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 15:59:16,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 15:59:16,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-24 15:59:16,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-24 15:59:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:59:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:17,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:17,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:59:17,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:17,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:17,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 15:59:17,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:17,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 15:59:17,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:17,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:18,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:18,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:18,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:18,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:18,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:18,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:18,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:18,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:18,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:18,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:18,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:59:18,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:18,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:18,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:18,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:18,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:18,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:18,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:18,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:18,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:18,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:18,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:18,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:18,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:18,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:18,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:18,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:18,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:18,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 43 proven. 748 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2020-09-24 15:59:19,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525857018] [2020-09-24 15:59:19,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:19,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 15:59:19,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095640080] [2020-09-24 15:59:19,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 15:59:19,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:19,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 15:59:19,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=364, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:19,084 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 24 states. [2020-09-24 15:59:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:19,396 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2020-09-24 15:59:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:59:19,396 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 144 [2020-09-24 15:59:19,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:19,398 INFO L225 Difference]: With dead ends: 109 [2020-09-24 15:59:19,398 INFO L226 Difference]: Without dead ends: 103 [2020-09-24 15:59:19,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=579, Invalid=1061, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:59:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-24 15:59:19,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-09-24 15:59:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-24 15:59:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2020-09-24 15:59:19,406 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 144 [2020-09-24 15:59:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:19,407 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2020-09-24 15:59:19,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 15:59:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2020-09-24 15:59:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 15:59:19,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:19,410 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:19,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 15:59:19,411 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:19,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:19,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1225615079, now seen corresponding path program 17 times [2020-09-24 15:59:19,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:19,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492396571] [2020-09-24 15:59:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:59:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 15:59:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:59:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 15:59:19,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:59:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-24 15:59:19,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 15:59:20,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 15:59:20,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:20,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-24 15:59:20,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:59:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:20,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 15:59:20,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:20,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:20,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 15:59:20,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:20,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:20,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 15:59:20,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:20,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:21,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:59:21,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:21,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:21,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:21,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:21,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:21,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:21,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:21,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:21,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:21,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:21,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:21,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:21,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:21,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:21,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:21,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:21,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:21,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:21,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:21,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:21,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:21,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:21,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:21,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:21,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 54 proven. 813 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2020-09-24 15:59:22,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492396571] [2020-09-24 15:59:22,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:22,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 15:59:22,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875317270] [2020-09-24 15:59:22,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 15:59:22,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:22,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 15:59:22,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:59:22,088 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 23 states. [2020-09-24 15:59:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:22,419 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2020-09-24 15:59:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:59:22,419 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 152 [2020-09-24 15:59:22,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:22,421 INFO L225 Difference]: With dead ends: 114 [2020-09-24 15:59:22,421 INFO L226 Difference]: Without dead ends: 108 [2020-09-24 15:59:22,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:59:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-24 15:59:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-09-24 15:59:22,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-24 15:59:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2020-09-24 15:59:22,428 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 152 [2020-09-24 15:59:22,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:22,429 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2020-09-24 15:59:22,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 15:59:22,429 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2020-09-24 15:59:22,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 15:59:22,431 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:22,431 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:22,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 15:59:22,432 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:22,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:22,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2080643855, now seen corresponding path program 18 times [2020-09-24 15:59:22,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:22,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362947596] [2020-09-24 15:59:22,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:59:22,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 15:59:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:59:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:22,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:22,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:22,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:22,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-24 15:59:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-24 15:59:22,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:59:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-09-24 15:59:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:59:23,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 15:59:23,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-24 15:59:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 15:59:23,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 15:59:23,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:23,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:23,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 15:59:23,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:23,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:59:23,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:23,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 15:59:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:23,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:24,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:59:24,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:24,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 15:59:24,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:24,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:24,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,336 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,336 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:24,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:24,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:24,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:24,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:24,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:24,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:24,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:24,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:24,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:24,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:24,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:24,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:24,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:24,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:24,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,858 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,858 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:24,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:24,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:24,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:24,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:24,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:24,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:24,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:25,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:25,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:25,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 120 proven. 831 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-09-24 15:59:25,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362947596] [2020-09-24 15:59:25,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:25,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 15:59:25,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342777685] [2020-09-24 15:59:25,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 15:59:25,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:25,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 15:59:25,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:25,298 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand 24 states. [2020-09-24 15:59:25,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:25,608 INFO L93 Difference]: Finished difference Result 119 states and 120 transitions. [2020-09-24 15:59:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 15:59:25,609 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 160 [2020-09-24 15:59:25,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:25,610 INFO L225 Difference]: With dead ends: 119 [2020-09-24 15:59:25,610 INFO L226 Difference]: Without dead ends: 113 [2020-09-24 15:59:25,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 15:59:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-24 15:59:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-09-24 15:59:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-24 15:59:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 114 transitions. [2020-09-24 15:59:25,620 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 114 transitions. Word has length 160 [2020-09-24 15:59:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:25,620 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 114 transitions. [2020-09-24 15:59:25,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 15:59:25,620 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 114 transitions. [2020-09-24 15:59:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 15:59:25,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:25,625 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:25,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 15:59:25,626 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:25,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1136658471, now seen corresponding path program 19 times [2020-09-24 15:59:25,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:25,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104596944] [2020-09-24 15:59:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 15:59:25,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 15:59:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 15:59:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:25,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:25,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:25,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 15:59:26,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-09-24 15:59:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-24 15:59:26,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 15:59:26,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-24 15:59:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-09-24 15:59:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:59:26,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 15:59:26,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-24 15:59:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 15:59:26,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 15:59:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:26,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 15:59:26,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:26,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:59:26,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:27,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 15:59:27,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:27,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:27,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:27,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 15:59:27,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:27,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:27,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:27,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:27,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:27,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:27,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:27,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:27,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:27,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:27,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:27,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:28,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:28,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:28,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:28,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:28,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:28,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:28,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:28,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 104 proven. 979 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-09-24 15:59:28,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104596944] [2020-09-24 15:59:28,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:28,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 15:59:28,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221031550] [2020-09-24 15:59:28,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 15:59:28,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:28,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 15:59:28,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:28,425 INFO L87 Difference]: Start difference. First operand 113 states and 114 transitions. Second operand 25 states. [2020-09-24 15:59:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:28,832 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2020-09-24 15:59:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:59:28,833 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 168 [2020-09-24 15:59:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:28,834 INFO L225 Difference]: With dead ends: 124 [2020-09-24 15:59:28,834 INFO L226 Difference]: Without dead ends: 118 [2020-09-24 15:59:28,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 15:59:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-24 15:59:28,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-09-24 15:59:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-24 15:59:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2020-09-24 15:59:28,841 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 168 [2020-09-24 15:59:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:28,841 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2020-09-24 15:59:28,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 15:59:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2020-09-24 15:59:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 15:59:28,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:28,844 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:28,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 15:59:28,844 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:28,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1108876879, now seen corresponding path program 20 times [2020-09-24 15:59:28,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:28,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436963550] [2020-09-24 15:59:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:59:28,874 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:59:28,874 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:59:28,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-24 15:59:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:59:28 BoogieIcfgContainer [2020-09-24 15:59:28,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:59:28,925 INFO L168 Benchmark]: Toolchain (without parser) took 29865.91 ms. Allocated memory was 139.5 MB in the beginning and 634.9 MB in the end (delta: 495.5 MB). Free memory was 102.4 MB in the beginning and 488.9 MB in the end (delta: -386.5 MB). Peak memory consumption was 109.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,926 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.85 ms. Allocated memory is still 139.5 MB. Free memory was 101.7 MB in the beginning and 92.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,931 INFO L168 Benchmark]: Boogie Preprocessor took 33.61 ms. Allocated memory is still 139.5 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,932 INFO L168 Benchmark]: RCFGBuilder took 394.26 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 91.2 MB in the beginning and 171.0 MB in the end (delta: -79.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,932 INFO L168 Benchmark]: TraceAbstraction took 29116.20 ms. Allocated memory was 203.4 MB in the beginning and 634.9 MB in the end (delta: 431.5 MB). Free memory was 171.0 MB in the beginning and 488.9 MB in the end (delta: -317.9 MB). Peak memory consumption was 113.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:28,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.85 ms. Allocated memory is still 139.5 MB. Free memory was 101.7 MB in the beginning and 92.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.61 ms. Allocated memory is still 139.5 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 394.26 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 91.2 MB in the beginning and 171.0 MB in the end (delta: -79.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29116.20 ms. Allocated memory was 203.4 MB in the beginning and 634.9 MB in the end (delta: 431.5 MB). Free memory was 171.0 MB in the beginning and 488.9 MB in the end (delta: -317.9 MB). Peak memory consumption was 113.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 20; [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 20 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 1762 SDslu, 1920 SDs, 0 SdLazy, 737 SolverSat, 241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 484 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 2016 NumberOfCodeBlocks, 2016 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1820 ConstructedInterpolants, 0 QuantifiedInterpolants, 553782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3148/9880 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...