/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_15x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:55:38,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:55:38,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:55:38,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:55:38,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:55:38,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:55:38,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:55:38,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:55:38,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:55:38,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:55:38,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:55:38,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:55:38,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:55:38,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:55:38,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:55:38,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:55:38,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:55:38,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:55:38,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:55:38,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:55:38,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:55:38,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:55:38,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:55:38,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:55:38,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:55:38,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:55:38,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:55:38,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:55:38,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:55:38,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:55:38,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:55:38,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:55:38,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:55:38,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:55:38,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:55:38,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:55:38,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:55:38,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:55:38,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:55:38,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:55:38,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:55:38,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:55:38,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:55:38,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:55:38,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:55:38,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:55:38,524 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:55:38,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:55:38,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:55:38,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:55:38,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:55:38,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:55:38,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:55:38,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:55:38,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:55:38,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:55:38,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:55:38,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:55:38,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:55:38,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:55:38,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:55:38,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:55:38,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:55:38,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:38,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:55:38,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:55:38,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:55:38,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:55:38,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:55:38,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:55:38,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:55:38,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:55:39,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:55:39,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:55:39,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:55:39,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:55:39,033 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:55:39,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_15x0-2.c [2020-09-25 00:55:39,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd95969/21aa2abfb59b44199ae879c8949fc530/FLAGc68dfd56f [2020-09-25 00:55:39,635 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:55:39,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_15x0-2.c [2020-09-25 00:55:39,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd95969/21aa2abfb59b44199ae879c8949fc530/FLAGc68dfd56f [2020-09-25 00:55:39,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd95969/21aa2abfb59b44199ae879c8949fc530 [2020-09-25 00:55:40,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:55:40,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:55:40,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:40,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:55:40,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:55:40,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:39" (1/1) ... [2020-09-25 00:55:40,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40, skipping insertion in model container [2020-09-25 00:55:40,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:39" (1/1) ... [2020-09-25 00:55:40,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:55:40,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:55:40,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:40,286 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:55:40,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:40,325 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:55:40,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40 WrapperNode [2020-09-25 00:55:40,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:40,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:55:40,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:55:40,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:55:40,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... [2020-09-25 00:55:40,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:55:40,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:55:40,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:55:40,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:55:40,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:55:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:55:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-25 00:55:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:55:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:55:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-25 00:55:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:55:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:55:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:55:40,772 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:55:40,772 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:55:40,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:40 BoogieIcfgContainer [2020-09-25 00:55:40,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:55:40,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:55:40,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:55:40,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:55:40,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:55:39" (1/3) ... [2020-09-25 00:55:40,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a01a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:40, skipping insertion in model container [2020-09-25 00:55:40,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:40" (2/3) ... [2020-09-25 00:55:40,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a01a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:40, skipping insertion in model container [2020-09-25 00:55:40,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:40" (3/3) ... [2020-09-25 00:55:40,788 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_15x0-2.c [2020-09-25 00:55:40,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:55:40,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:55:40,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:55:40,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:55:40,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:55:40,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:55:40,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:55:40,862 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:55:40,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:55:40,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:55:40,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:55:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 00:55:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 00:55:40,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:40,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:40,896 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:40,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:40,902 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-25 00:55:40,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:40,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993550524] [2020-09-25 00:55:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:55:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 00:55:41,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:55:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:55:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:41,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:41,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:41,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:55:41,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:41,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:41,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:41,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:41,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:55:41,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:55:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:41,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:55:41,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993550524] [2020-09-25 00:55:41,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:55:41,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:55:41,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96981011] [2020-09-25 00:55:41,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:55:41,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:41,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:55:41,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:55:41,464 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-25 00:55:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:41,628 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-25 00:55:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:55:41,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 00:55:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:41,644 INFO L225 Difference]: With dead ends: 39 [2020-09-25 00:55:41,644 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 00:55:41,648 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 00:55:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 00:55:41,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 00:55:41,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 00:55:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-25 00:55:41,698 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-25 00:55:41,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:41,698 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-25 00:55:41,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:55:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-25 00:55:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 00:55:41,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:41,701 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:41,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:55:41,702 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:41,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:41,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-25 00:55:41,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:41,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225197668] [2020-09-25 00:55:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 00:55:42,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-25 00:55:42,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:42,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:42,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:55:42,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:42,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:55:42,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 00:55:42,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:55:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:55:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:42,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:42,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:42,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:55:42,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:42,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:42,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:55:42,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 00:55:42,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225197668] [2020-09-25 00:55:42,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:42,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:55:42,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364370661] [2020-09-25 00:55:42,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:55:42,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:42,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:55:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:42,858 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 9 states. [2020-09-25 00:55:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:42,959 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-25 00:55:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:55:42,960 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-25 00:55:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:42,961 INFO L225 Difference]: With dead ends: 36 [2020-09-25 00:55:42,962 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 00:55:42,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:55:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 00:55:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 00:55:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:55:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 00:55:42,971 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-25 00:55:42,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:42,971 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 00:55:42,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:55:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 00:55:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 00:55:42,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:42,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:42,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:55:42,973 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:42,974 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-25 00:55:42,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:42,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134073917] [2020-09-25 00:55:42,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:55:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 00:55:43,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:55:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:55:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:43,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:43,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:43,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:43,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:55:43,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 00:55:43,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:55:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:55:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:43,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:55:43,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 00:55:43,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:55:43,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:43,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:55:43,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:55:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:55:43,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134073917] [2020-09-25 00:55:43,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:43,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:55:43,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060184135] [2020-09-25 00:55:43,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:55:43,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:43,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:55:43,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:55:43,777 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-09-25 00:55:43,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:43,859 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 00:55:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:55:43,860 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-25 00:55:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:43,862 INFO L225 Difference]: With dead ends: 41 [2020-09-25 00:55:43,862 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 00:55:43,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:55:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 00:55:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 00:55:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 00:55:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-25 00:55:43,871 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-25 00:55:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:43,872 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-25 00:55:43,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:55:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-25 00:55:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 00:55:43,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:43,874 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:43,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:55:43,874 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:43,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-25 00:55:43,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:43,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323609119] [2020-09-25 00:55:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 00:55:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:44,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 772 [2020-09-25 00:55:44,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:55:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:44,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:44,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:44,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:44,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 00:55:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:55:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:55:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:55:44,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 00:55:44,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:55:44,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:55:45,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:55:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:45,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:55:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:45,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:45,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:55:45,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:55:45,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 00:55:45,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323609119] [2020-09-25 00:55:45,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:45,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:55:45,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257700986] [2020-09-25 00:55:45,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:55:45,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:45,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:55:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:45,113 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states. [2020-09-25 00:55:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:45,228 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 00:55:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:55:45,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-25 00:55:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:45,230 INFO L225 Difference]: With dead ends: 46 [2020-09-25 00:55:45,230 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 00:55:45,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:55:45,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 00:55:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 00:55:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 00:55:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 00:55:45,244 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-25 00:55:45,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:45,250 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 00:55:45,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:55:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 00:55:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 00:55:45,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:45,256 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:45,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:55:45,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:45,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:45,257 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-25 00:55:45,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:45,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611644080] [2020-09-25 00:55:45,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:47,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1904 [2020-09-25 00:55:47,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:55:47,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:47,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:47,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:47,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:47,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:47,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:55:47,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 00:55:47,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:55:47,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:47,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 00:55:47,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:47,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:55:47,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:55:47,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:55:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:55:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:55:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:55:47,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:55:47,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:47,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:55:47,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:55:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-25 00:55:47,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611644080] [2020-09-25 00:55:47,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:47,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:55:47,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232565241] [2020-09-25 00:55:47,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:55:47,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:47,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:55:47,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:47,876 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 9 states. [2020-09-25 00:55:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:47,976 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 00:55:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:55:47,977 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-09-25 00:55:47,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:47,979 INFO L225 Difference]: With dead ends: 51 [2020-09-25 00:55:47,979 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 00:55:47,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:55:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 00:55:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 00:55:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 00:55:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-25 00:55:47,987 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-25 00:55:47,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:47,988 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-25 00:55:47,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:55:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-25 00:55:47,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 00:55:47,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:47,990 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:47,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:55:47,990 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:47,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-25 00:55:47,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:47,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818486313] [2020-09-25 00:55:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:55:51,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3673 [2020-09-25 00:55:51,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:55:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:51,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:51,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 00:55:51,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:51,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 00:55:51,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:55:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 00:55:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:55:52,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 00:55:52,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 00:55:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:52,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 00:55:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:55:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:55:52,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 00:55:52,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:55:52,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:52,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:55:52,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 00:55:52,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:55:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:55:52,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:55:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:55:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:52,691 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 8 proven. 72 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-25 00:55:52,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818486313] [2020-09-25 00:55:52,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:52,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:55:52,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24954950] [2020-09-25 00:55:52,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:55:52,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:52,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:55:52,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:55:52,694 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2020-09-25 00:55:52,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:52,821 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-25 00:55:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:55:52,821 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-25 00:55:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:52,823 INFO L225 Difference]: With dead ends: 56 [2020-09-25 00:55:52,823 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 00:55:52,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:55:52,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 00:55:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 00:55:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 00:55:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 00:55:52,833 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-25 00:55:52,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:52,833 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 00:55:52,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:55:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 00:55:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:55:52,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:52,837 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:52,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:55:52,837 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:52,838 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-25 00:55:52,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:52,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369762042] [2020-09-25 00:55:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:56,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 00:55:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:56,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3708 [2020-09-25 00:55:56,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 00:55:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 00:55:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:56,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:56,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:56,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:56,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:55:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:56,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:56,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:59,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:55:59,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:55:59,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2607 [2020-09-25 00:55:59,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 00:55:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:59,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 00:55:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:59,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:59,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:59,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:59,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 00:55:59,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:59,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 00:55:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:55:59,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:59,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:59,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:55:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 00:55:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 00:55:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:59,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:59,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:59,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:55:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:59,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:55:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:59,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:56:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:56:00,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:56:00,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:56:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:56:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:56:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:56:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:56:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 17 proven. 102 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-25 00:56:00,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369762042] [2020-09-25 00:56:00,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:56:00,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 00:56:00,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80546771] [2020-09-25 00:56:00,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:56:00,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:00,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:56:00,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:56:00,169 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 14 states. [2020-09-25 00:56:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:00,323 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-25 00:56:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:56:00,324 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 72 [2020-09-25 00:56:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:00,325 INFO L225 Difference]: With dead ends: 61 [2020-09-25 00:56:00,325 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 00:56:00,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:56:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 00:56:00,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 00:56:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 00:56:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 00:56:00,333 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-25 00:56:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:00,333 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 00:56:00,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:56:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 00:56:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 00:56:00,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:00,335 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:00,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:56:00,336 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:00,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:00,336 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-25 00:56:00,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:00,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592341942] [2020-09-25 00:56:00,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:04,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:04,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 00:56:04,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4595 [2020-09-25 00:56:04,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:04,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:56:04,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:56:04,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 00:56:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:04,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:04,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:04,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:04,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:04,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:56:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:05,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 00:56:05,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 00:56:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:56:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:56:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 00:56:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:05,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:05,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:56:05,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:05,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-25 00:56:05,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:56:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:56:05,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:05,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 00:56:06,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 00:56:06,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:56:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:56:06,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:06,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:56:06,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 00:56:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:06,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:56:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 00:56:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:56:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:56:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:06,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:56:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 00:56:06,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:56:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:56:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:06,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:56:06,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 00:56:06,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:56:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:56:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:06,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:06,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:06,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:56:06,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:06,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:56:06,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:06,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:56:06,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:06,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 15 proven. 149 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 00:56:06,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592341942] [2020-09-25 00:56:06,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:56:06,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 00:56:06,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186924554] [2020-09-25 00:56:06,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:56:06,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:06,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:56:06,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:56:06,726 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 14 states. [2020-09-25 00:56:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:06,864 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 00:56:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:56:06,865 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-09-25 00:56:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:06,867 INFO L225 Difference]: With dead ends: 66 [2020-09-25 00:56:06,867 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 00:56:06,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-09-25 00:56:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 00:56:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 00:56:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 00:56:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-25 00:56:06,875 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-25 00:56:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:06,876 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-25 00:56:06,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:56:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-25 00:56:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 00:56:06,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:06,878 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:06,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:56:06,878 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:06,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-25 00:56:06,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:06,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644130789] [2020-09-25 00:56:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:07,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:11,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:11,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 00:56:11,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:11,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 00:56:11,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-25 00:56:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:56:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 00:56:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:11,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:11,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:11,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:56:11,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:11,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:56:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4259 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 00:56:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:16,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:16,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 00:56:16,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:16,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 00:56:16,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:56:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:56:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:16,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:16,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:56:17,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 00:56:17,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:56:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:56:17,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:17,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:56:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:56:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:17,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 00:56:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:56:17,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:56:17,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:56:17,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:56:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:17,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:56:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:56:17,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:17,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:56:17,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 00:56:17,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:56:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:56:17,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:17,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:17,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:17,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:56:17,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:56:17,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:56:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 31 proven. 180 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 00:56:17,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644130789] [2020-09-25 00:56:17,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:56:17,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 00:56:17,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575778733] [2020-09-25 00:56:17,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 00:56:17,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:17,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 00:56:17,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:56:17,986 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 16 states. [2020-09-25 00:56:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:18,214 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 00:56:18,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:56:18,215 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2020-09-25 00:56:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:18,216 INFO L225 Difference]: With dead ends: 71 [2020-09-25 00:56:18,216 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 00:56:18,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:56:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 00:56:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-25 00:56:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 00:56:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-25 00:56:18,233 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-25 00:56:18,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:18,236 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-25 00:56:18,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 00:56:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-25 00:56:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 00:56:18,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:18,239 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:18,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:56:18,239 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:18,239 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-25 00:56:18,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:18,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447078416] [2020-09-25 00:56:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:18,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:23,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:23,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 00:56:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:23,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:23,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:23,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:23,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:56:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:23,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:23,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:56:23,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-09-25 00:56:23,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:56:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:56:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 00:56:23,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:24,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:24,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 00:56:24,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:24,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 00:56:24,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:56:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 00:56:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:24,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:24,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 00:56:24,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:24,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 00:56:24,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:56:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:56:24,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:24,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:56:25,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 00:56:25,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:56:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:56:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:25,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:56:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:25,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 00:56:25,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 00:56:25,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:56:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 00:56:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:25,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:56:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 00:56:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:25,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:56:25,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 00:56:25,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:56:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:56:25,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:25,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:25,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:25,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:56:25,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:56:25,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:56:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:56:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:26,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:26,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:26,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:26,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:56:26,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:26,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:56:26,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:26,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:56:26,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:26,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:56:26,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 24 proven. 234 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-25 00:56:26,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447078416] [2020-09-25 00:56:26,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:56:26,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:56:26,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050970980] [2020-09-25 00:56:26,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:56:26,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:56:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:56:26,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:56:26,081 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-25 00:56:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:56:26,303 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-25 00:56:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:56:26,303 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-25 00:56:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:56:26,305 INFO L225 Difference]: With dead ends: 76 [2020-09-25 00:56:26,306 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 00:56:26,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:56:26,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 00:56:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 00:56:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 00:56:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 00:56:26,313 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-25 00:56:26,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:56:26,314 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 00:56:26,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:56:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 00:56:26,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-25 00:56:26,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:56:26,316 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:56:26,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:56:26,316 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:56:26,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:56:26,316 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-25 00:56:26,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:56:26,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176464054] [2020-09-25 00:56:26,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:56:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:26,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:26,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:31,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:31,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 00:56:31,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:31,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:31,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:56:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:31,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:31,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:36,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:56:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:36,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:36,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:56:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:56:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:37,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:37,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:56:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 00:56:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:37,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:37,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:38,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:38,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 00:56:38,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:38,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 00:56:38,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:38,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:56:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:56:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:38,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:38,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:38,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:56:38,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-25 00:56:38,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:38,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:56:38,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:38,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:56:38,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:56:38,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:56:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat