/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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/fibo_2calls_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:44:16,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:44:16,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:44:16,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:44:16,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:44:16,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:44:16,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:44:16,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:44:16,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:44:16,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:44:16,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:44:16,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:44:16,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:44:16,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:44:16,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:44:16,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:44:16,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:44:16,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:44:16,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:44:16,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:44:16,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:44:16,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:44:16,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:44:16,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:44:16,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:44:16,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:44:16,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:44:16,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:44:16,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:44:16,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:44:16,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:44:16,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:44:16,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:44:16,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:44:16,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:44:16,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:44:16,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:44:16,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:44:16,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:44:16,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:44:16,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:44:16,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:44:16,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:44:16,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:44:16,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:44:16,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:44:16,511 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:44:16,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:44:16,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:44:16,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:44:16,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:44:16,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:44:16,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:44:16,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:44:16,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:44:16,513 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:44:16,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:44:16,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:44:16,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:44:16,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:44:16,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:44:16,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:44:16,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:44:16,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:44:16,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:44:16,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:44:16,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:44:16,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:44:16,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:44:16,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:44:16,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:44:16,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:44:17,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:44:17,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:44:17,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:44:17,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:44:17,047 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:44:17,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-1.c [2020-09-25 07:44:17,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a763868/e549d6f6ba90478c926c50928e70642f/FLAGdf4f5c1c7 [2020-09-25 07:44:17,703 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:44:17,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-1.c [2020-09-25 07:44:17,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a763868/e549d6f6ba90478c926c50928e70642f/FLAGdf4f5c1c7 [2020-09-25 07:44:18,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a763868/e549d6f6ba90478c926c50928e70642f [2020-09-25 07:44:18,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:44:18,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:44:18,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:44:18,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:44:18,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:44:18,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54535c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18, skipping insertion in model container [2020-09-25 07:44:18,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:44:18,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:44:18,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:44:18,353 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:44:18,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:44:18,392 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:44:18,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18 WrapperNode [2020-09-25 07:44:18,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:44:18,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:44:18,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:44:18,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:44:18,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... [2020-09-25 07:44:18,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:44:18,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:44:18,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:44:18,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:44:18,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:44:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:44:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:44:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:44:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:44:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:44:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:44:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:44:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:44:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:44:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:44:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:44:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:44:18,835 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:44:18,836 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:44:18,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:44:18 BoogieIcfgContainer [2020-09-25 07:44:18,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:44:18,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:44:18,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:44:18,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:44:18,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:44:18" (1/3) ... [2020-09-25 07:44:18,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:44:18, skipping insertion in model container [2020-09-25 07:44:18,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:44:18" (2/3) ... [2020-09-25 07:44:18,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:44:18, skipping insertion in model container [2020-09-25 07:44:18,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:44:18" (3/3) ... [2020-09-25 07:44:18,854 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-1.c [2020-09-25 07:44:18,869 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:44:18,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:44:18,928 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:44:18,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:44:18,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:44:18,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:44:18,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:44:18,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:44:18,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:44:18,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:44:18,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:44:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:44:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:44:19,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:19,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:19,006 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:44:19,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:19,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260513641] [2020-09-25 07:44:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:44:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 07:44:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:44:19,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 07:44:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:19,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:44:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:19,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:19,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:44:19,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:44:19,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:19,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:44:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:44:19,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260513641] [2020-09-25 07:44:19,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:19,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:44:19,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918637919] [2020-09-25 07:44:19,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:44:19,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:19,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:44:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:44:19,600 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:44:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:19,695 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:44:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:44:19,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:44:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:19,711 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:44:19,711 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:44:19,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:44:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:44:19,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:44:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:44:19,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:44:19,776 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:44:19,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:19,777 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:44:19,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:44:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:44:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:44:19,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:19,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:19,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:44:19,781 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:19,781 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:44:19,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:19,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124173731] [2020-09-25 07:44:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:44:19,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 07:44:19,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:19,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:19,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:19,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:19,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:19,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:19,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:19,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:19,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:44:19,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:19,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:44:20,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124173731] [2020-09-25 07:44:20,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:20,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:44:20,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792324479] [2020-09-25 07:44:20,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:44:20,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:20,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:44:20,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:44:20,016 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:44:20,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:20,110 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:44:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:44:20,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:44:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:20,113 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:44:20,114 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:44:20,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:44:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:44:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:44:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:44:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:44:20,128 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:44:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:20,129 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:44:20,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:44:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:44:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:44:20,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:20,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:20,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:44:20,132 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:20,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:44:20,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:20,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187533550] [2020-09-25 07:44:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:20,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:20,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:22,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:44:22,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1916 [2020-09-25 07:44:22,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:22,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:44:22,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:44:22,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:22,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:22,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:22,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:22,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:22,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:22,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:22,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:22,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:22,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:22,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-09-25 07:44:22,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:22,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:44:22,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:22,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:22,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:22,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:22,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:44:22,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:22,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:44:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:22,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:44:22,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:44:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:22,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:44:22,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187533550] [2020-09-25 07:44:22,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:44:22,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:44:22,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152134950] [2020-09-25 07:44:22,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:44:22,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:22,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:44:22,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:44:22,625 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 8 states. [2020-09-25 07:44:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:22,759 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2020-09-25 07:44:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:44:22,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 07:44:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:22,766 INFO L225 Difference]: With dead ends: 64 [2020-09-25 07:44:22,768 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 07:44:22,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:44:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 07:44:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 07:44:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:44:22,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:44:22,789 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:44:22,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:22,791 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:44:22,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:44:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:44:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:44:22,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:22,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:22,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:44:22,799 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:22,800 INFO L82 PathProgramCache]: Analyzing trace with hash -159162515, now seen corresponding path program 1 times [2020-09-25 07:44:22,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:22,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899581482] [2020-09-25 07:44:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:22,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:22,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:26,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:44:26,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:44:26,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3410 [2020-09-25 07:44:26,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:26,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:44:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:44:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:26,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:26,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:26,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:26,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:44:26,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:26,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:26,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:26,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:27,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:27,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:44:27,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-09-25 07:44:27,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:27,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:44:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:27,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:27,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:27,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:27,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:44:27,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:27,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:44:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:44:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:27,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:44:27,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:27,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:44:27,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899581482] [2020-09-25 07:44:27,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:27,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:44:27,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674101727] [2020-09-25 07:44:27,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:44:27,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:27,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:44:27,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:44:27,338 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:44:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:27,487 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2020-09-25 07:44:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:44:27,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:44:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:27,490 INFO L225 Difference]: With dead ends: 70 [2020-09-25 07:44:27,490 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 07:44:27,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:44:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 07:44:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2020-09-25 07:44:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 07:44:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2020-09-25 07:44:27,502 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 34 [2020-09-25 07:44:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:27,503 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2020-09-25 07:44:27,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:44:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2020-09-25 07:44:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:44:27,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:27,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:27,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:44:27,505 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:27,506 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 2 times [2020-09-25 07:44:27,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:27,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83590482] [2020-09-25 07:44:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:27,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:44:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 907 [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:44:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:28,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:28,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:28,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:28,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:28,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:28,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:44:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:28,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:28,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:28,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 07:44:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:28,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:28,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:44:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:28,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:28,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:44:28,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:28,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:44:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:28,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:28,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:28,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:28,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:44:28,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:28,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:28,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:44:28,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83590482] [2020-09-25 07:44:28,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:28,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:44:28,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347909595] [2020-09-25 07:44:28,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:44:28,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:28,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:44:28,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:44:28,633 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 9 states. [2020-09-25 07:44:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:28,761 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2020-09-25 07:44:28,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:44:28,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:44:28,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:28,767 INFO L225 Difference]: With dead ends: 72 [2020-09-25 07:44:28,767 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:44:28,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:44:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:44:28,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:44:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:44:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2020-09-25 07:44:28,786 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 34 [2020-09-25 07:44:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:28,792 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-09-25 07:44:28,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:44:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2020-09-25 07:44:28,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:44:28,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:28,798 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:28,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:44:28,799 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:44:28,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:28,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551101694] [2020-09-25 07:44:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:28,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:28,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:29,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:29,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:30,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:44:30,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:44:30,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1459 [2020-09-25 07:44:30,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:30,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:30,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:30,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:44:30,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:44:30,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:30,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:30,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:30,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:30,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:30,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:30,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:30,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:30,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:30,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:44:30,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 07:44:30,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:30,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:30,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:30,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:30,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:30,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:30,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:44:30,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:30,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:44:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:30,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:30,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:30,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:30,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:30,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:30,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:44:30,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:30,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:44:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:30,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:30,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:44:30,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551101694] [2020-09-25 07:44:30,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:30,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:44:30,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89286660] [2020-09-25 07:44:30,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:44:30,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:30,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:44:30,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:44:30,874 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand 9 states. [2020-09-25 07:44:31,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:31,015 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2020-09-25 07:44:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:44:31,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 07:44:31,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:31,019 INFO L225 Difference]: With dead ends: 76 [2020-09-25 07:44:31,020 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 07:44:31,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:44:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 07:44:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 50. [2020-09-25 07:44:31,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:44:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:44:31,036 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 35 [2020-09-25 07:44:31,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:31,036 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:44:31,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:44:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:44:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 07:44:31,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:31,045 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:31,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:44:31,045 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:31,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:31,046 INFO L82 PathProgramCache]: Analyzing trace with hash -2066677686, now seen corresponding path program 1 times [2020-09-25 07:44:31,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:31,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607421896] [2020-09-25 07:44:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:31,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:44:36,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:44:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:44:36,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:44:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:36,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:36,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:36,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:36,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:36,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:36,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:36,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:36,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:36,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:38,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:44:38,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:44:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2508 [2020-09-25 07:44:38,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:38,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:38,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 07:44:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:38,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:38,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:38,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:38,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:38,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:38,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:38,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:38,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:38,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:44:38,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:44:38,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 07:44:38,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:38,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:38,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:38,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:38,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:44:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:38,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:38,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:44:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:38,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:38,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:38,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:44:38,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:38,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:38,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:44:38,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607421896] [2020-09-25 07:44:38,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:38,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:44:38,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937809680] [2020-09-25 07:44:38,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:44:38,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:38,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:44:38,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:44:38,951 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:44:39,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:39,147 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2020-09-25 07:44:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:44:39,147 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-25 07:44:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:39,149 INFO L225 Difference]: With dead ends: 74 [2020-09-25 07:44:39,149 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 07:44:39,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:44:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 07:44:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2020-09-25 07:44:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 07:44:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2020-09-25 07:44:39,160 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 50 [2020-09-25 07:44:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:39,160 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-09-25 07:44:39,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:44:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2020-09-25 07:44:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 07:44:39,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:39,162 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:39,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:44:39,163 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:39,163 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 07:44:39,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:39,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497959643] [2020-09-25 07:44:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:40,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:42,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:43,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:43,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:44,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:44:44,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:44:44,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:44:44,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:44,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:44:44,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 07:44:44,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:44,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:44,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:44,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:44,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:44,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:45,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:48,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:44:49,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:44:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:44:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:49,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:49,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:44:49,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:44:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:49,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:44:49,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:49,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:44:49,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:44:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:44:49,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:44:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 07:44:49,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:44:49,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:49,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:49,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:44:49,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:44:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:44:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:49,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:44:49,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:44:49,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:49,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:44:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:44:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 07:44:49,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497959643] [2020-09-25 07:44:49,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:49,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:44:49,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467329056] [2020-09-25 07:44:49,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:44:49,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:49,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:44:49,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:44:49,566 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 9 states. [2020-09-25 07:44:49,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:49,723 INFO L93 Difference]: Finished difference Result 86 states and 119 transitions. [2020-09-25 07:44:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:44:49,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 07:44:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:49,726 INFO L225 Difference]: With dead ends: 86 [2020-09-25 07:44:49,726 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 07:44:49,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:44:49,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 07:44:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 62. [2020-09-25 07:44:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 07:44:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 07:44:49,736 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 69 [2020-09-25 07:44:49,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:49,737 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 07:44:49,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:44:49,737 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 07:44:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 07:44:49,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:49,739 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:49,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:44:49,739 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:49,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:49,740 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 2 times [2020-09-25 07:44:49,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:49,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636785689] [2020-09-25 07:44:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:49,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:49,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:50,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:50,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:50,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:50,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:54,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:44:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:44:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:44:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:54,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:54,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:54,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:54,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:54,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:54,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:54,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:44:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:54,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:59,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:44:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:44:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:59,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:44:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:59,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:00,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:00,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:00,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-25 07:45:00,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:00,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:00,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:00,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:45:00,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:00,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:00,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:00,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:00,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:00,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:00,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:01,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:01,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:01,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:01,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:01,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:01,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:01,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:01,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:01,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:45:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:01,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:02,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:02,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:02,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-09-25 07:45:02,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:02,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:02,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 07:45:02,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:02,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:02,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:02,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:02,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:02,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:02,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:02,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:02,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:02,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:02,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:02,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:02,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:02,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:02,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:02,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:02,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:02,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:02,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:02,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:02,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:02,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:02,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:02,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:02,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:02,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 39 proven. 56 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-25 07:45:02,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636785689] [2020-09-25 07:45:02,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:02,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 07:45:02,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445537823] [2020-09-25 07:45:02,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:45:02,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:02,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:45:02,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:45:02,711 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 12 states. [2020-09-25 07:45:03,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:03,052 INFO L93 Difference]: Finished difference Result 163 states and 242 transitions. [2020-09-25 07:45:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:45:03,053 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-09-25 07:45:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:03,056 INFO L225 Difference]: With dead ends: 163 [2020-09-25 07:45:03,056 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 07:45:03,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:45:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 07:45:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2020-09-25 07:45:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 07:45:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2020-09-25 07:45:03,082 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 101 [2020-09-25 07:45:03,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:03,082 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2020-09-25 07:45:03,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:45:03,083 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2020-09-25 07:45:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 07:45:03,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:03,086 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:03,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:45:03,086 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:03,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:03,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2099337189, now seen corresponding path program 1 times [2020-09-25 07:45:03,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:03,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289715512] [2020-09-25 07:45:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:03,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:08,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 07:45:08,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:45:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:08,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:08,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:08,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking...