/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:05:32,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:05:32,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:05:32,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:05:32,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:05:32,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:05:32,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:05:32,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:05:32,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:05:32,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:05:32,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:05:32,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:05:32,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:05:32,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:05:32,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:05:32,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:05:32,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:05:32,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:05:32,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:05:32,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:05:32,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:05:32,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:05:32,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:05:32,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:05:32,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:05:32,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:05:32,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:05:32,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:05:32,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:05:32,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:05:32,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:05:32,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:05:32,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:05:32,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:05:32,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:05:32,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:05:32,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:05:32,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:05:32,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:05:32,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:05:32,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:05:32,539 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 [2020-10-27 04:05:32,570 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:05:32,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:05:32,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:05:32,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:05:32,572 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:05:32,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:05:32,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:05:32,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:05:32,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:05:32,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:05:32,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:05:32,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:05:32,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:05:32,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:05:32,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:05:32,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:05:32,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:05:32,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:05:32,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:05:32,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:05:32,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:05:32,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:05:32,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:05:32,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:05:32,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:05:32,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:05:32,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:05:32,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:05:32,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:05:32,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:05:32,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:05:32,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:05:32,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:05:32,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:05:32,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:05:32,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-10-27 04:05:33,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/106d47d78/151c635763274a87810d5843a8192610/FLAG9e8be80fb [2020-10-27 04:05:33,685 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:05:33,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-10-27 04:05:33,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/106d47d78/151c635763274a87810d5843a8192610/FLAG9e8be80fb [2020-10-27 04:05:34,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/106d47d78/151c635763274a87810d5843a8192610 [2020-10-27 04:05:34,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:05:34,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:05:34,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:05:34,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:05:34,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:05:34,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf6724e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34, skipping insertion in model container [2020-10-27 04:05:34,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:05:34,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:05:34,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:05:34,264 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:05:34,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:05:34,294 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:05:34,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34 WrapperNode [2020-10-27 04:05:34,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:05:34,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:05:34,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:05:34,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:05:34,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (1/1) ... [2020-10-27 04:05:34,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:05:34,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:05:34,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:05:34,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:05:34,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (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 [2020-10-27 04:05:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:05:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:05:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:05:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-10-27 04:05:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 04:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-10-27 04:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:05:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:05:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:05:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:05:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:05:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:05:34,932 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:05:34,932 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 04:05:34,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:05:34 BoogieIcfgContainer [2020-10-27 04:05:34,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:05:34,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:05:34,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:05:34,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:05:34,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:05:34" (1/3) ... [2020-10-27 04:05:34,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536035dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:05:34, skipping insertion in model container [2020-10-27 04:05:34,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:34" (2/3) ... [2020-10-27 04:05:34,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536035dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:05:34, skipping insertion in model container [2020-10-27 04:05:34,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:05:34" (3/3) ... [2020-10-27 04:05:34,947 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_5-2.c [2020-10-27 04:05:34,960 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:05:34,965 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:05:34,978 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:05:35,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:05:35,021 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:05:35,021 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:05:35,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:05:35,021 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:05:35,021 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:05:35,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:05:35,022 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:05:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-27 04:05:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 04:05:35,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:35,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:35,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:35,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:35,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1708859500, now seen corresponding path program 1 times [2020-10-27 04:05:35,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:35,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380518751] [2020-10-27 04:05:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:35,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:35,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:05:35,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:05:35,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-27 04:05:35,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:05:35,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:35,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:35,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:35,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:35,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:35,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:36,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:36,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:05:36,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380518751] [2020-10-27 04:05:36,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:05:36,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:05:36,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799888185] [2020-10-27 04:05:36,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:05:36,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:36,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:05:36,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:05:36,080 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-10-27 04:05:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:36,341 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-10-27 04:05:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:05:36,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 04:05:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:36,353 INFO L225 Difference]: With dead ends: 41 [2020-10-27 04:05:36,353 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 04:05:36,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:05:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 04:05:36,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 04:05:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:05:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-27 04:05:36,405 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2020-10-27 04:05:36,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:36,405 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-27 04:05:36,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:05:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-27 04:05:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 04:05:36,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:36,408 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:36,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:05:36,409 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash -308126725, now seen corresponding path program 1 times [2020-10-27 04:05:36,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:36,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508623172] [2020-10-27 04:05:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:36,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:36,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 04:05:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2183 [2020-10-27 04:05:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 04:05:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:38,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:38,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:38,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:38,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:38,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:05:38,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:38,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:38,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:38,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:38,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:38,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:05:38,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-27 04:05:38,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:38,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:05:38,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:38,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:38,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:05:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:38,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:05:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:05:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:38,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:38,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:38,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:05:38,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 04:05:39,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508623172] [2020-10-27 04:05:39,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:39,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:05:39,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018339392] [2020-10-27 04:05:39,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:05:39,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:39,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:05:39,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:05:39,022 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 8 states. [2020-10-27 04:05:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:39,380 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2020-10-27 04:05:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:05:39,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-27 04:05:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:39,383 INFO L225 Difference]: With dead ends: 35 [2020-10-27 04:05:39,383 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 04:05:39,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:05:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 04:05:39,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-10-27 04:05:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 04:05:39,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-27 04:05:39,397 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 28 [2020-10-27 04:05:39,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:39,397 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-27 04:05:39,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:05:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-27 04:05:39,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 04:05:39,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:39,400 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:39,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:05:39,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:39,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:39,401 INFO L82 PathProgramCache]: Analyzing trace with hash 977084561, now seen corresponding path program 1 times [2020-10-27 04:05:39,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:39,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585872214] [2020-10-27 04:05:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:39,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:40,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 04:05:40,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:05:40,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-10-27 04:05:40,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:40,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:05:40,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:40,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:40,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:40,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:05:40,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:40,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:05:41,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 04:05:41,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:41,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:05:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:41,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:41,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:41,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:05:41,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:05:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:41,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:41,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 04:05:41,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585872214] [2020-10-27 04:05:41,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:41,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 04:05:41,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131447237] [2020-10-27 04:05:41,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 04:05:41,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:41,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 04:05:41,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:05:41,216 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 7 states. [2020-10-27 04:05:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:41,490 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2020-10-27 04:05:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:05:41,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-27 04:05:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:41,493 INFO L225 Difference]: With dead ends: 43 [2020-10-27 04:05:41,493 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 04:05:41,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:05:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 04:05:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2020-10-27 04:05:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 04:05:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-10-27 04:05:41,519 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 30 [2020-10-27 04:05:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:41,519 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-27 04:05:41,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 04:05:41,519 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-10-27 04:05:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 04:05:41,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:41,524 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:41,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:05:41,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:41,525 INFO L82 PathProgramCache]: Analyzing trace with hash -483926242, now seen corresponding path program 1 times [2020-10-27 04:05:41,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:41,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710073672] [2020-10-27 04:05:41,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:42,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:42,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:46,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 04:05:46,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 04:05:46,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:05:46,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:46,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:46,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:46,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 04:05:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:46,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:46,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:46,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:46,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:46,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:46,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:46,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:47,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 04:05:47,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:05:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1065 [2020-10-27 04:05:47,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:47,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 04:05:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:47,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:47,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:47,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:05:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-27 04:05:47,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:05:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:05:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 04:05:47,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:47,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:47,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:47,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:05:47,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:05:47,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:05:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:47,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:47,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:47,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:47,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:05:47,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:47,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:05:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:47,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:47,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:47,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:05:47,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 04:05:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710073672] [2020-10-27 04:05:47,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:47,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:05:47,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454238124] [2020-10-27 04:05:47,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:05:47,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:47,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:05:47,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:05:47,965 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 8 states. [2020-10-27 04:05:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:48,316 INFO L93 Difference]: Finished difference Result 45 states and 71 transitions. [2020-10-27 04:05:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:05:48,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-27 04:05:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:48,319 INFO L225 Difference]: With dead ends: 45 [2020-10-27 04:05:48,320 INFO L226 Difference]: Without dead ends: 40 [2020-10-27 04:05:48,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:05:48,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-27 04:05:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-10-27 04:05:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 04:05:48,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 47 transitions. [2020-10-27 04:05:48,341 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 47 transitions. Word has length 42 [2020-10-27 04:05:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:48,343 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 47 transitions. [2020-10-27 04:05:48,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:05:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2020-10-27 04:05:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 04:05:48,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:48,347 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:48,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:05:48,348 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:48,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1970549580, now seen corresponding path program 2 times [2020-10-27 04:05:48,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:48,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109410431] [2020-10-27 04:05:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:48,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:53,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 04:05:53,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 04:05:53,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4960 [2020-10-27 04:05:53,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:53,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:53,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:53,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 04:05:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:53,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:53,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:53,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:53,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:53,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:54,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 04:05:54,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:05:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-10-27 04:05:54,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:54,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:54,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:05:54,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:54,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:54,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:05:54,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 04:05:54,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:05:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:54,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:05:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:54,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:54,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:54,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:54,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:54,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:54,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:54,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:54,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:54,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:05:54,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:05:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 04:05:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:54,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:54,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:54,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:54,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:05:54,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:54,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 04:05:54,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109410431] [2020-10-27 04:05:54,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:54,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:05:54,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061460521] [2020-10-27 04:05:54,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:05:54,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:05:54,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:05:54,770 INFO L87 Difference]: Start difference. First operand 33 states and 47 transitions. Second operand 10 states. [2020-10-27 04:05:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:55,144 INFO L93 Difference]: Finished difference Result 70 states and 121 transitions. [2020-10-27 04:05:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 04:05:55,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-27 04:05:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:55,148 INFO L225 Difference]: With dead ends: 70 [2020-10-27 04:05:55,148 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 04:05:55,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:05:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 04:05:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 47. [2020-10-27 04:05:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 04:05:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 72 transitions. [2020-10-27 04:05:55,170 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 72 transitions. Word has length 44 [2020-10-27 04:05:55,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:55,172 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 72 transitions. [2020-10-27 04:05:55,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:05:55,173 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 72 transitions. [2020-10-27 04:05:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 04:05:55,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:55,179 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:55,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:05:55,180 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:55,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:55,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1819789559, now seen corresponding path program 2 times [2020-10-27 04:05:55,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:55,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635951918] [2020-10-27 04:05:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:55,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:00,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 04:06:00,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 04:06:00,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 04:06:00,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:00,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:06:00,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:06:00,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 04:06:00,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:00,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:00,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:00,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 04:06:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 04:06:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:06:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:06:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:06:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 04:06:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 04:06:05,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:05,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:10,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 04:06:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:06:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:10,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:10,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:10,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:10,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:10,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:10,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:06:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:10,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:10,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:10,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:10,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:06:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:10,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:11,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 04:06:11,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 748 [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 04:06:11,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:11,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:06:11,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:06:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:06:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:11,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:11,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:11,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:11,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:11,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:06:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:11,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:11,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:11,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:11,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:06:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:11,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:11,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:11,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:11,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:11,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:11,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:11,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:11,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:06:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:11,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:11,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 04:06:12,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:06:12,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-27 04:06:12,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:06:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 04:06:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:12,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:06:12,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:12,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 04:06:12,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:06:12,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:12,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:06:12,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:12,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:12,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:12,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:12,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:12,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:06:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:12,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:12,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:12,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:06:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:12,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:12,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 151 proven. 180 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-27 04:06:12,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635951918] [2020-10-27 04:06:12,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:06:12,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 04:06:12,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542902366] [2020-10-27 04:06:12,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 04:06:12,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:06:12,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 04:06:12,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:06:12,253 INFO L87 Difference]: Start difference. First operand 47 states and 72 transitions. Second operand 21 states. [2020-10-27 04:06:13,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:06:13,387 INFO L93 Difference]: Finished difference Result 127 states and 274 transitions. [2020-10-27 04:06:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 04:06:13,389 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 106 [2020-10-27 04:06:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:06:13,395 INFO L225 Difference]: With dead ends: 127 [2020-10-27 04:06:13,395 INFO L226 Difference]: Without dead ends: 87 [2020-10-27 04:06:13,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 04:06:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-27 04:06:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2020-10-27 04:06:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-27 04:06:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 112 transitions. [2020-10-27 04:06:13,432 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 112 transitions. Word has length 106 [2020-10-27 04:06:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:06:13,433 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 112 transitions. [2020-10-27 04:06:13,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 04:06:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 112 transitions. [2020-10-27 04:06:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 04:06:13,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:06:13,439 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:06:13,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:06:13,441 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:06:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:06:13,441 INFO L82 PathProgramCache]: Analyzing trace with hash 494532718, now seen corresponding path program 3 times [2020-10-27 04:06:13,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:06:13,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960566933] [2020-10-27 04:06:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:06:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:13,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:13,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 04:06:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:06:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:06:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 04:06:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:23,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4966 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:06:28,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:06:28,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:06:28,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 04:06:28,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:06:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:28,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:28,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 04:06:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:06:28,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:06:28,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 04:06:28,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:28,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:28,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:28,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:28,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:28,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 04:06:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:29,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:32,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:32,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:33,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 04:06:33,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 04:06:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:33,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:33,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:33,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:34,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:34,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:34,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:34,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:06:38,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:06:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:38,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:38,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:06:38,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 04:06:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:06:38,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:06:38,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:06:38,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:38,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:38,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:38,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:38,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:38,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:38,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 04:06:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:38,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:38,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:06:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 239 proven. 246 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2020-10-27 04:06:39,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960566933] [2020-10-27 04:06:39,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:06:39,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 04:06:39,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986731807] [2020-10-27 04:06:39,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:06:39,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:06:39,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:06:39,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:06:39,009 INFO L87 Difference]: Start difference. First operand 75 states and 112 transitions. Second operand 15 states. [2020-10-27 04:06:40,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:06:40,508 INFO L93 Difference]: Finished difference Result 132 states and 220 transitions. [2020-10-27 04:06:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:06:40,509 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 128 [2020-10-27 04:06:40,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:06:40,512 INFO L225 Difference]: With dead ends: 132 [2020-10-27 04:06:40,512 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 04:06:40,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:06:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 04:06:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2020-10-27 04:06:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-27 04:06:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2020-10-27 04:06:40,542 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 128 [2020-10-27 04:06:40,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:06:40,543 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-27 04:06:40,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:06:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2020-10-27 04:06:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-27 04:06:40,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:06:40,548 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:06:40,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:06:40,552 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:06:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:06:40,552 INFO L82 PathProgramCache]: Analyzing trace with hash -73042607, now seen corresponding path program 2 times [2020-10-27 04:06:40,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:06:40,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300984858] [2020-10-27 04:06:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:06:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:42,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:42,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:43,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:06:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 04:06:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:45,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:45,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:50,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-27 04:06:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:06:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 04:06:50,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 04:06:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:06:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 04:06:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:50,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:50,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:50,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:50,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:50,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 04:06:55,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:06:55,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:06:55,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 04:06:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 04:06:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:06:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:55,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:55,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:55,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:55,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:55,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:06:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:55,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:55,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:56,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:56,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:56,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:56,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:00,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:00,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 04:07:00,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 04:07:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:07:00,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:07:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:07:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 04:07:00,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:07:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:07:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:07:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:07:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:07:01,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:07:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:07:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:01,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:07:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:07:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:07:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:07:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:07:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:07:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:07:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:07:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:07:01,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:07:01,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:07:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:07:01,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:07:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:07:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:07:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:07:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:07:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 322 proven. 216 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2020-10-27 04:07:01,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300984858] [2020-10-27 04:07:01,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:07:01,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 04:07:01,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37957579] [2020-10-27 04:07:01,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:07:01,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:07:01,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:07:01,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:07:01,441 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand 19 states. [2020-10-27 04:07:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:07:03,419 INFO L93 Difference]: Finished difference Result 127 states and 180 transitions. [2020-10-27 04:07:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 04:07:03,419 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2020-10-27 04:07:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:07:03,421 INFO L225 Difference]: With dead ends: 127 [2020-10-27 04:07:03,421 INFO L226 Difference]: Without dead ends: 75 [2020-10-27 04:07:03,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=397, Invalid=1409, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 04:07:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-27 04:07:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2020-10-27 04:07:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 04:07:03,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2020-10-27 04:07:03,445 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 138 [2020-10-27 04:07:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:07:03,446 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2020-10-27 04:07:03,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:07:03,446 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2020-10-27 04:07:03,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 04:07:03,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:07:03,447 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:07:03,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:07:03,448 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:07:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:07:03,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1296121057, now seen corresponding path program 3 times [2020-10-27 04:07:03,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:07:03,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717103263] [2020-10-27 04:07:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:07:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 04:07:03,464 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 04:07:03,464 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 04:07:03,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:07:03,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:07:03 BoogieIcfgContainer [2020-10-27 04:07:03,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 04:07:03,494 INFO L168 Benchmark]: Toolchain (without parser) took 89434.46 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 110.9 MB in the beginning and 646.4 MB in the end (delta: -535.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:07:03,494 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:07:03,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.94 ms. Allocated memory is still 154.1 MB. Free memory was 110.3 MB in the beginning and 101.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:03,496 INFO L168 Benchmark]: Boogie Preprocessor took 45.97 ms. Allocated memory is still 154.1 MB. Free memory was 101.2 MB in the beginning and 136.6 MB in the end (delta: -35.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:03,496 INFO L168 Benchmark]: RCFGBuilder took 590.08 ms. Allocated memory is still 154.1 MB. Free memory was 136.3 MB in the beginning and 126.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:03,497 INFO L168 Benchmark]: TraceAbstraction took 88554.19 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 126.1 MB in the beginning and 646.4 MB in the end (delta: -520.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 04:07:03,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 230.94 ms. Allocated memory is still 154.1 MB. Free memory was 110.3 MB in the beginning and 101.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.97 ms. Allocated memory is still 154.1 MB. Free memory was 101.2 MB in the beginning and 136.6 MB in the end (delta: -35.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 590.08 ms. Allocated memory is still 154.1 MB. Free memory was 136.3 MB in the beginning and 126.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 88554.19 ms. Allocated memory was 154.1 MB in the beginning and 676.3 MB in the end (delta: 522.2 MB). Free memory was 126.1 MB in the beginning and 646.4 MB in the end (delta: -520.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L26] int x = 5; [L27] CALL, EXPR fibo(x) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND TRUE n < 1 [L9] return 0; [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND TRUE n < 1 [L9] return 0; [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND FALSE !(n == 1) [L13] CALL, EXPR fibo(n-1) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND TRUE n < 1 [L9] return 0; [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-1) [L13] CALL, EXPR fibo(n-2) [L8] COND FALSE !(n < 1) [L10] COND TRUE n == 1 [L11] return 1; [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L13] RET, EXPR fibo(n-2) [L13] return fibo(n-1) + fibo(n-2); [L27] RET, EXPR fibo(x) [L27] int result = fibo(x); [L28] COND TRUE result == 5 [L29] CALL reach_error() [L4] __assert_fail("0", "fibo_5-2.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 88.4s, OverallIterations: 9, TraceHistogramMax: 19, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 168 SDtfs, 517 SDslu, 275 SDs, 0 SdLazy, 1276 SolverSat, 575 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 81.3s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 523 ConstructedInterpolants, 0 QuantifiedInterpolants, 126169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 1677/2378 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...