/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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:59:13,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:59:13,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:59:13,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:59:13,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:59:13,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:59:13,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:59:13,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:59:13,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:59:13,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:59:13,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:59:13,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:59:13,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:59:13,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:59:13,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:59:13,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:59:13,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:59:13,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:59:13,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:59:13,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:59:13,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:59:13,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:59:13,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:59:13,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:59:13,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:59:13,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:59:13,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:59:13,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:59:13,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:59:13,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:59:13,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:59:13,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:59:13,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:59:13,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:59:13,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:59:13,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:59:13,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:59:13,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:59:13,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:59:13,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:59:13,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:59:13,209 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 03:59:13,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:59:13,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:59:13,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:59:13,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:59:13,263 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:59:13,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:59:13,264 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:59:13,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:59:13,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:59:13,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:59:13,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:59:13,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:59:13,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:59:13,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:59:13,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:59:13,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:59:13,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:59:13,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:59:13,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:59:13,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:59:13,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:59:13,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:59:13,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:59:13,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:59:13,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:59:13,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:59:13,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:59:13,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:59:13,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:59:13,723 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:59:13,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-27 03:59:13,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94821daee/06695e74a5dc4bf68673269ad06cfddc/FLAGa068c8b26 [2020-10-27 03:59:14,535 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:59:14,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-27 03:59:14,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94821daee/06695e74a5dc4bf68673269ad06cfddc/FLAGa068c8b26 [2020-10-27 03:59:14,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94821daee/06695e74a5dc4bf68673269ad06cfddc [2020-10-27 03:59:14,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:59:14,902 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:59:14,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:59:14,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:59:14,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:59:14,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:59:14" (1/1) ... [2020-10-27 03:59:14,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d85f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:14, skipping insertion in model container [2020-10-27 03:59:14,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:59:14" (1/1) ... [2020-10-27 03:59:14,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:59:14,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:59:15,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:59:15,187 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:59:15,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:59:15,224 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:59:15,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15 WrapperNode [2020-10-27 03:59:15,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:59:15,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:59:15,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:59:15,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:59:15,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (1/1) ... [2020-10-27 03:59:15,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:59:15,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:59:15,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:59:15,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:59:15,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (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 03:59:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:59:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:59:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:59:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-10-27 03:59:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:59:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:59:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:59:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:59:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:59:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:59:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-10-27 03:59:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:59:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:59:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:59:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:59:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:59:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:59:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:59:15,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:59:15,785 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 03:59:15,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:59:15 BoogieIcfgContainer [2020-10-27 03:59:15,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:59:15,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:59:15,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:59:15,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:59:15,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:59:14" (1/3) ... [2020-10-27 03:59:15,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd610a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:59:15, skipping insertion in model container [2020-10-27 03:59:15,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:59:15" (2/3) ... [2020-10-27 03:59:15,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd610a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:59:15, skipping insertion in model container [2020-10-27 03:59:15,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:59:15" (3/3) ... [2020-10-27 03:59:15,797 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-10-27 03:59:15,811 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:59:15,816 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 03:59:15,830 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 03:59:15,859 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:59:15,859 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:59:15,859 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:59:15,860 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:59:15,860 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:59:15,860 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:59:15,860 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:59:15,860 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:59:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 03:59:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 03:59:15,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:15,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:15,887 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:15,894 INFO L82 PathProgramCache]: Analyzing trace with hash -874294957, now seen corresponding path program 1 times [2020-10-27 03:59:15,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:15,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179206189] [2020-10-27 03:59:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:16,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:16,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:16,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 03:59:16,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:16,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:59:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:59:16,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:16,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:16,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:16,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:16,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:59:16,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:16,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:16,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:16,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:59:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:59:16,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:16,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:16,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:59:16,749 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 03:59:16,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179206189] [2020-10-27 03:59:16,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:59:16,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:59:16,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375648989] [2020-10-27 03:59:16,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:59:16,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:16,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:59:16,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:59:16,780 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-10-27 03:59:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:17,129 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-10-27 03:59:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 03:59:17,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-27 03:59:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:17,142 INFO L225 Difference]: With dead ends: 39 [2020-10-27 03:59:17,142 INFO L226 Difference]: Without dead ends: 21 [2020-10-27 03:59:17,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:59:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-27 03:59:17,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-27 03:59:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-27 03:59:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-27 03:59:17,196 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2020-10-27 03:59:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:17,197 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-27 03:59:17,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:59:17,197 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-27 03:59:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 03:59:17,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:17,199 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:17,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:59:17,200 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:17,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1992247557, now seen corresponding path program 1 times [2020-10-27 03:59:17,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:17,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675445115] [2020-10-27 03:59:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 03:59:17,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-27 03:59:17,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:59:17,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:59:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:17,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:59:17,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:17,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:17,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:17,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 03:59:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 03:59:17,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 03:59:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 03:59:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:17,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:59:17,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:17,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:17,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 03:59:17,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675445115] [2020-10-27 03:59:17,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:17,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 03:59:17,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174928149] [2020-10-27 03:59:17,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 03:59:17,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 03:59:17,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-27 03:59:17,867 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 10 states. [2020-10-27 03:59:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:18,374 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-27 03:59:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 03:59:18,375 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-27 03:59:18,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:18,377 INFO L225 Difference]: With dead ends: 29 [2020-10-27 03:59:18,377 INFO L226 Difference]: Without dead ends: 24 [2020-10-27 03:59:18,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:59:18,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-27 03:59:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-27 03:59:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-27 03:59:18,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-27 03:59:18,402 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2020-10-27 03:59:18,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:18,402 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-27 03:59:18,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 03:59:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-27 03:59:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 03:59:18,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:18,403 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:18,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:59:18,404 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:18,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:18,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1177737683, now seen corresponding path program 2 times [2020-10-27 03:59:18,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:18,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806023638] [2020-10-27 03:59:18,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 03:59:18,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-27 03:59:18,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 03:59:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:18,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:18,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 03:59:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 03:59:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:59:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 03:59:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 03:59:19,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 03:59:19,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 03:59:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:19,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:59:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 03:59:19,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806023638] [2020-10-27 03:59:19,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:19,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 03:59:19,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135378401] [2020-10-27 03:59:19,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 03:59:19,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:19,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 03:59:19,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:59:19,129 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 12 states. [2020-10-27 03:59:19,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:19,726 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-27 03:59:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:59:19,727 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-10-27 03:59:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:19,729 INFO L225 Difference]: With dead ends: 32 [2020-10-27 03:59:19,729 INFO L226 Difference]: Without dead ends: 27 [2020-10-27 03:59:19,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2020-10-27 03:59:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-27 03:59:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-27 03:59:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-27 03:59:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-27 03:59:19,742 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2020-10-27 03:59:19,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:19,743 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-27 03:59:19,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 03:59:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-27 03:59:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 03:59:19,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:19,746 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:19,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:59:19,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:19,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:19,747 INFO L82 PathProgramCache]: Analyzing trace with hash -859595771, now seen corresponding path program 3 times [2020-10-27 03:59:19,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:19,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503225749] [2020-10-27 03:59:19,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 03:59:20,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-27 03:59:20,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:59:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 03:59:20,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:59:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 03:59:20,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 03:59:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 03:59:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 03:59:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 03:59:20,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 03:59:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 03:59:20,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:59:20,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:20,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 03:59:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:20,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:59:20,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:20,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 03:59:20,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503225749] [2020-10-27 03:59:20,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:20,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 03:59:20,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727036412] [2020-10-27 03:59:20,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 03:59:20,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:20,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 03:59:20,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:59:20,581 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 14 states. [2020-10-27 03:59:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:21,315 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-27 03:59:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 03:59:21,320 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2020-10-27 03:59:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:21,321 INFO L225 Difference]: With dead ends: 35 [2020-10-27 03:59:21,321 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 03:59:21,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2020-10-27 03:59:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 03:59:21,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-27 03:59:21,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-27 03:59:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-27 03:59:21,330 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 34 [2020-10-27 03:59:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:21,331 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-27 03:59:21,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 03:59:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-27 03:59:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 03:59:21,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:21,332 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:21,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:59:21,333 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1203654061, now seen corresponding path program 4 times [2020-10-27 03:59:21,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:21,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802947167] [2020-10-27 03:59:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:21,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:21,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:21,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:21,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 03:59:21,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:21,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-10-27 03:59:21,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:59:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:59:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 03:59:21,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:59:22,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:22,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:22,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:59:22,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:22,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:22,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 03:59:22,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:22,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-27 03:59:22,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 03:59:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 03:59:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:59:22,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 03:59:22,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 03:59:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 03:59:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 03:59:22,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:22,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 03:59:22,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 03:59:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 03:59:22,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 03:59:22,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 03:59:22,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:59:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 03:59:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:59:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:22,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:22,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:22,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:59:22,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:59:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:59:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 03:59:22,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802947167] [2020-10-27 03:59:22,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:59:22,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 03:59:22,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703237082] [2020-10-27 03:59:22,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 03:59:22,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:22,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 03:59:22,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:59:22,688 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-10-27 03:59:23,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:23,338 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-27 03:59:23,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 03:59:23,338 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2020-10-27 03:59:23,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:23,339 INFO L225 Difference]: With dead ends: 30 [2020-10-27 03:59:23,339 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 03:59:23,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2020-10-27 03:59:23,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 03:59:23,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 03:59:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 03:59:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 03:59:23,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-10-27 03:59:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:23,344 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 03:59:23,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 03:59:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 03:59:23,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 03:59:23,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:59:23,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 03:59:23,520 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 03:59:23,520 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 03:59:23,520 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 03:59:23,521 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 03:59:23,521 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 03:59:23,521 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 03:59:23,521 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L274 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L277 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2020-10-27 03:59:23,522 INFO L274 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (<= |hanoi_#in~n| hanoi_~n) (<= hanoi_~n |hanoi_#in~n|)) [2020-10-27 03:59:23,522 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L274 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 03:59:23,522 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 03:59:23,523 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 03:59:23,523 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 03:59:23,523 INFO L274 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-10-27 03:59:23,526 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= main_~n~0 31) [2020-10-27 03:59:23,526 INFO L274 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-10-27 03:59:23,527 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 26 37) the Hoare annotation is: true [2020-10-27 03:59:23,527 INFO L274 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-10-27 03:59:23,527 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 26 37) no Hoare annotation was computed. [2020-10-27 03:59:23,527 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 26 37) no Hoare annotation was computed. [2020-10-27 03:59:23,527 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: false [2020-10-27 03:59:23,527 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-27 03:59:23,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:59:23 BoogieIcfgContainer [2020-10-27 03:59:23,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:59:23,541 INFO L168 Benchmark]: Toolchain (without parser) took 8640.78 ms. Allocated memory was 154.1 MB in the beginning and 223.3 MB in the end (delta: 69.2 MB). Free memory was 129.4 MB in the beginning and 131.8 MB in the end (delta: -2.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:59:23,543 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:59:23,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.76 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 119.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:59:23,547 INFO L168 Benchmark]: Boogie Preprocessor took 62.15 ms. Allocated memory is still 154.1 MB. Free memory was 119.7 MB in the beginning and 118.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:59:23,553 INFO L168 Benchmark]: RCFGBuilder took 495.86 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 105.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:59:23,554 INFO L168 Benchmark]: TraceAbstraction took 7746.73 ms. Allocated memory was 154.1 MB in the beginning and 223.3 MB in the end (delta: 69.2 MB). Free memory was 105.0 MB in the beginning and 131.8 MB in the end (delta: -26.7 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:59:23,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 319.76 ms. Allocated memory is still 154.1 MB. Free memory was 128.9 MB in the beginning and 119.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.15 ms. Allocated memory is still 154.1 MB. Free memory was 119.7 MB in the beginning and 118.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 495.86 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 105.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7746.73 ms. Allocated memory was 154.1 MB in the beginning and 223.3 MB in the end (delta: 69.2 MB). Free memory was 105.0 MB in the beginning and 131.8 MB in the end (delta: -26.7 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 91 SDslu, 219 SDs, 0 SdLazy, 698 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 47 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 15543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 73/100 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 correct! Received shutdown request...