/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:34:11,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:34:11,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:34:11,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:34:11,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:34:11,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:34:11,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:34:11,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:34:11,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:34:11,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:34:11,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:34:11,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:34:11,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:34:11,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:34:11,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:34:11,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:34:11,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:34:11,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:34:11,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:34:11,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:34:11,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:34:11,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:34:11,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:34:11,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:34:11,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:34:11,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:34:11,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:34:11,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:34:11,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:34:11,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:34:11,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:34:11,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:34:11,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:34:11,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:34:11,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:34:11,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:34:11,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:34:11,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:34:11,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:34:11,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:34:11,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:34:11,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:34:11,418 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:34:11,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:34:11,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:34:11,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:34:11,422 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:34:11,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:34:11,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:34:11,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:34:11,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:34:11,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:34:11,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:34:11,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:34:11,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:34:11,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:34:11,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:34:11,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:34:11,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:34:11,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:34:11,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:34:11,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:34:11,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:34:11,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:34:11,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:34:11,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:34:11,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:34:11,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:34:11,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:34:11,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:34:11,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:34:11,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:34:11,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:34:11,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:34:11,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:34:11,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:34:11,955 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:34:11,956 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-09-25 06:34:12,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b317e93b/89ee2a2406f148279bda70789af438b5/FLAGdcef3b69b [2020-09-25 06:34:12,530 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:34:12,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition01-2.c [2020-09-25 06:34:12,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b317e93b/89ee2a2406f148279bda70789af438b5/FLAGdcef3b69b [2020-09-25 06:34:12,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b317e93b/89ee2a2406f148279bda70789af438b5 [2020-09-25 06:34:12,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:34:12,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:34:12,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:34:12,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:34:12,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:34:12,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:34:12" (1/1) ... [2020-09-25 06:34:12,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:12, skipping insertion in model container [2020-09-25 06:34:12,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:34:12" (1/1) ... [2020-09-25 06:34:12,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:34:12,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:34:13,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:34:13,196 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:34:13,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:34:13,229 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:34:13,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13 WrapperNode [2020-09-25 06:34:13,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:34:13,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:34:13,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:34:13,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:34:13,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... [2020-09-25 06:34:13,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:34:13,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:34:13,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:34:13,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:34:13,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:34:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:34:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:34:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-25 06:34:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:34:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:34:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:34:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-25 06:34:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:34:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:34:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:34:13,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:34:13,731 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:34:13,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:34:13 BoogieIcfgContainer [2020-09-25 06:34:13,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:34:13,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:34:13,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:34:13,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:34:13,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:34:12" (1/3) ... [2020-09-25 06:34:13,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8950c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:34:13, skipping insertion in model container [2020-09-25 06:34:13,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:34:13" (2/3) ... [2020-09-25 06:34:13,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8950c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:34:13, skipping insertion in model container [2020-09-25 06:34:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:34:13" (3/3) ... [2020-09-25 06:34:13,770 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-09-25 06:34:13,782 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:34:13,794 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:34:13,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:34:13,846 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:34:13,846 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:34:13,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:34:13,847 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:34:13,847 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:34:13,847 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:34:13,847 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:34:13,847 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:34:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-09-25 06:34:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 06:34:13,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:13,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:13,879 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:13,885 INFO L82 PathProgramCache]: Analyzing trace with hash 935018920, now seen corresponding path program 1 times [2020-09-25 06:34:13,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:13,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611193105] [2020-09-25 06:34:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:14,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:34:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 06:34:14,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:14,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:34:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 06:34:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:34:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:34:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:14,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:14,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:14,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:34:14,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:14,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:14,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:14,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:14,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:14,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:34:14,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:14,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:34:14,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:14,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:34:14,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:34:14,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611193105] [2020-09-25 06:34:14,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:34:14,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:34:14,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547927427] [2020-09-25 06:34:14,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:34:14,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:14,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:34:14,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:34:14,671 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 8 states. [2020-09-25 06:34:14,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:14,964 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2020-09-25 06:34:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:34:14,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-09-25 06:34:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:14,982 INFO L225 Difference]: With dead ends: 57 [2020-09-25 06:34:14,983 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 06:34:14,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:34:15,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 06:34:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-25 06:34:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 06:34:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2020-09-25 06:34:15,052 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 24 [2020-09-25 06:34:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:15,052 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2020-09-25 06:34:15,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:34:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2020-09-25 06:34:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 06:34:15,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:15,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:15,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:34:15,057 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:15,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2135506668, now seen corresponding path program 1 times [2020-09-25 06:34:15,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:15,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323987320] [2020-09-25 06:34:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:34:15,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:34:15,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 06:34:15,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:34:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:34:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:34:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:34:15,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:15,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:34:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:34:15,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:34:15,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:34:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:34:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:34:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:34:15,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323987320] [2020-09-25 06:34:15,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:34:15,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:34:15,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700950200] [2020-09-25 06:34:15,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:34:15,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:15,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:34:15,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:34:15,295 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 4 states. [2020-09-25 06:34:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:15,326 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-09-25 06:34:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:34:15,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-25 06:34:15,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:15,328 INFO L225 Difference]: With dead ends: 53 [2020-09-25 06:34:15,328 INFO L226 Difference]: Without dead ends: 39 [2020-09-25 06:34:15,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:34:15,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-25 06:34:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-09-25 06:34:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 06:34:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-09-25 06:34:15,340 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-09-25 06:34:15,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:15,340 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-09-25 06:34:15,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:34:15,341 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-09-25 06:34:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 06:34:15,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:15,343 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:15,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:34:15,343 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:15,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1044754306, now seen corresponding path program 1 times [2020-09-25 06:34:15,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:15,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21716734] [2020-09-25 06:34:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:34:15,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 06:34:15,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 06:34:15,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:34:15,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:34:15,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 06:34:15,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:34:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:34:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:34:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:34:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:15,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:15,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:15,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:15,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:34:15,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:15,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:34:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:34:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 06:34:15,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21716734] [2020-09-25 06:34:15,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:34:15,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:34:15,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358166316] [2020-09-25 06:34:15,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:34:15,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:15,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:34:15,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:34:15,946 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 10 states. [2020-09-25 06:34:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:16,286 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-09-25 06:34:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:34:16,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-09-25 06:34:16,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:16,295 INFO L225 Difference]: With dead ends: 48 [2020-09-25 06:34:16,297 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 06:34:16,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:34:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 06:34:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 06:34:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 06:34:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-09-25 06:34:16,318 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 34 [2020-09-25 06:34:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:16,319 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-09-25 06:34:16,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:34:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-09-25 06:34:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 06:34:16,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:16,329 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:16,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:34:16,330 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:16,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1793410391, now seen corresponding path program 1 times [2020-09-25 06:34:16,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:16,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434784251] [2020-09-25 06:34:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:16,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:16,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:16,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:16,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:17,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 06:34:17,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:34:17,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-09-25 06:34:17,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:17,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:17,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:34:17,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:34:17,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:17,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:17,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:34:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:17,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:17,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:17,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:34:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:34:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 06:34:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:17,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:34:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:34:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:34:17,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:34:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:17,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:17,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:34:17,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:17,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:34:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:34:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:34:17,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434784251] [2020-09-25 06:34:17,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:34:17,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:34:17,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105633509] [2020-09-25 06:34:17,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:34:17,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:17,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:34:17,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:34:17,273 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 7 states. [2020-09-25 06:34:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:17,374 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2020-09-25 06:34:17,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:34:17,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 06:34:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:17,377 INFO L225 Difference]: With dead ends: 50 [2020-09-25 06:34:17,377 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 06:34:17,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:34:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 06:34:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 06:34:17,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 06:34:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-09-25 06:34:17,387 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 35 [2020-09-25 06:34:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:17,387 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-09-25 06:34:17,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:34:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-09-25 06:34:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 06:34:17,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:17,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:17,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:34:17,390 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1069722645, now seen corresponding path program 1 times [2020-09-25 06:34:17,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:17,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450854209] [2020-09-25 06:34:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:17,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:18,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:34:19,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:34:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-09-25 06:34:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:19,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:34:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:34:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:19,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:19,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:19,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:19,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:34:19,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:19,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:19,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:19,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:19,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:19,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:19,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 06:34:19,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:34:19,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-09-25 06:34:19,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:19,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:19,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:34:19,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:34:19,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:19,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:34:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:19,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:19,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:34:19,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 06:34:19,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:19,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:34:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 06:34:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:19,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:34:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:19,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:19,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:19,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:19,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:34:19,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:19,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:34:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:34:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 06:34:19,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450854209] [2020-09-25 06:34:19,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:34:19,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:34:19,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103602646] [2020-09-25 06:34:19,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:34:19,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:19,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:34:19,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:34:19,849 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 6 states. [2020-09-25 06:34:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:19,961 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-09-25 06:34:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:34:19,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-25 06:34:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:19,964 INFO L225 Difference]: With dead ends: 65 [2020-09-25 06:34:19,964 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 06:34:19,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:34:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 06:34:19,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-25 06:34:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 06:34:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-09-25 06:34:19,973 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 45 [2020-09-25 06:34:19,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:19,974 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-09-25 06:34:19,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:34:19,974 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-09-25 06:34:19,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 06:34:19,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:19,976 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:19,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:34:19,977 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:19,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:19,977 INFO L82 PathProgramCache]: Analyzing trace with hash -583370491, now seen corresponding path program 2 times [2020-09-25 06:34:19,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:19,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964240961] [2020-09-25 06:34:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:19,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:20,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:23,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:23,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:23,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:24,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:24,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 06:34:24,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 06:34:24,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:34:24,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:24,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 06:34:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:34:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:24,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:24,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:25,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:34:25,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:25,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:25,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:26,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 06:34:26,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:34:26,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1168 [2020-09-25 06:34:26,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:26,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:34:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:34:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:26,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:34:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:26,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:26,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 06:34:26,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:34:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 06:34:26,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:26,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:34:26,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:34:26,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:26,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:34:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:26,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:26,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 06:34:26,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:26,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:34:26,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:26,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:34:26,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 06:34:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:26,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:34:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:26,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:26,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:26,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:34:26,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:26,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:34:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:34:26,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 06:34:26,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964240961] [2020-09-25 06:34:26,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:34:26,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:34:26,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082935437] [2020-09-25 06:34:26,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:34:26,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:26,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:34:26,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:34:26,660 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 6 states. [2020-09-25 06:34:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:26,772 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2020-09-25 06:34:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:34:26,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-25 06:34:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:26,775 INFO L225 Difference]: With dead ends: 70 [2020-09-25 06:34:26,775 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 06:34:26,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:34:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 06:34:26,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 06:34:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 06:34:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2020-09-25 06:34:26,785 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 55 [2020-09-25 06:34:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:26,785 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2020-09-25 06:34:26,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:34:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2020-09-25 06:34:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:34:26,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:34:26,788 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:34:26,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:34:26,788 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:34:26,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:34:26,789 INFO L82 PathProgramCache]: Analyzing trace with hash -12886190, now seen corresponding path program 3 times [2020-09-25 06:34:26,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:34:26,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048707302] [2020-09-25 06:34:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:34:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:26,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:27,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:27,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:28,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:30,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:31,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:34:31,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 06:34:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 06:34:31,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:31,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:31,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 06:34:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:34:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:34:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:31,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:31,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:34:31,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:31,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:34:31,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:31,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:31,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:34:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:31,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:31,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:32,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:34:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:34:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 745 [2020-09-25 06:34:32,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:32,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:34:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:34:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:34:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:32,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:34:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 06:34:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:34:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 06:34:32,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:32,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:34:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:34:32,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:34:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:32,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:34:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:32,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:34:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:34:32,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:32,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:34:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:34:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:32,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:34:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:34:32,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:34:32,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:34:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:34:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:34:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:34:32,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:34:32,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:34:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:34:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:34:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:34:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:34:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 06:34:32,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048707302] [2020-09-25 06:34:32,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:34:32,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:34:32,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838999080] [2020-09-25 06:34:32,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:34:32,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:34:32,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:34:32,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:34:32,990 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 6 states. [2020-09-25 06:34:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:34:33,068 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2020-09-25 06:34:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:34:33,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-09-25 06:34:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:34:33,069 INFO L225 Difference]: With dead ends: 59 [2020-09-25 06:34:33,069 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:34:33,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:34:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:34:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:34:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:34:33,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:34:33,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2020-09-25 06:34:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:34:33,072 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:34:33,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:34:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:34:33,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:34:33,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:34:33,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:34:33,173 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 06:34:33,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:34:33,173 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:34:33,173 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:34:33,173 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 06:34:33,174 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-09-25 06:34:33,175 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2020-09-25 06:34:33,176 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2020-09-25 06:34:33,176 INFO L268 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-09-25 06:34:33,176 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 06:34:33,176 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 06:34:33,176 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (<= 0 main_~n~0) [2020-09-25 06:34:33,176 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-09-25 06:34:33,176 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point L39-2(line 39) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point L39-3(line 39) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (<= (+ addition_~n 1) 0) (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m)) [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 06:34:33,177 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (<= 1 addition_~n)) [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L271 CegarLoopResult]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-09-25 06:34:33,178 INFO L268 CegarLoopResult]: For program point L13(lines 13 23) no Hoare annotation was computed. [2020-09-25 06:34:33,179 INFO L268 CegarLoopResult]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2020-09-25 06:34:33,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:34:33 BoogieIcfgContainer [2020-09-25 06:34:33,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:34:33,190 INFO L168 Benchmark]: Toolchain (without parser) took 20306.73 ms. Allocated memory was 148.4 MB in the beginning and 339.7 MB in the end (delta: 191.4 MB). Free memory was 105.2 MB in the beginning and 125.7 MB in the end (delta: -20.5 MB). Peak memory consumption was 170.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:34:33,190 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:34:33,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.41 ms. Allocated memory is still 148.4 MB. Free memory was 104.6 MB in the beginning and 95.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:34:33,192 INFO L168 Benchmark]: Boogie Preprocessor took 30.84 ms. Allocated memory is still 148.4 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:34:33,193 INFO L168 Benchmark]: RCFGBuilder took 475.06 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 93.7 MB in the beginning and 170.6 MB in the end (delta: -76.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:34:33,194 INFO L168 Benchmark]: TraceAbstraction took 19438.53 ms. Allocated memory was 205.5 MB in the beginning and 339.7 MB in the end (delta: 134.2 MB). Free memory was 170.0 MB in the beginning and 125.7 MB in the end (delta: 44.3 MB). Peak memory consumption was 178.5 MB. Max. memory is 7.1 GB. [2020-09-25 06:34:33,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.41 ms. Allocated memory is still 148.4 MB. Free memory was 104.6 MB in the beginning and 95.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.84 ms. Allocated memory is still 148.4 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.06 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 93.7 MB in the beginning and 170.6 MB in the end (delta: -76.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19438.53 ms. Allocated memory was 205.5 MB in the beginning and 339.7 MB in the end (delta: 134.2 MB). Free memory was 170.0 MB in the beginning and 125.7 MB in the end (delta: 44.3 MB). Peak memory consumption was 178.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 227 SDtfs, 201 SDslu, 563 SDs, 0 SdLazy, 393 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 30 HoareAnnotationTreeSize, 14 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 30297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 86/101 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...