/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/loop-lit/gsv2008.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:53:54,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:53:54,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:53:54,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:53:54,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:53:54,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:53:54,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:53:54,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:53:54,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:53:54,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:53:54,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:53:54,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:53:54,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:53:54,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:53:54,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:53:54,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:53:54,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:53:54,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:53:54,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:53:54,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:53:54,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:53:54,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:53:54,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:53:54,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:53:54,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:53:54,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:53:54,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:53:54,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:53:54,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:53:54,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:53:54,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:53:54,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:53:54,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:53:54,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:53:54,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:53:54,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:53:54,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:53:54,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:53:54,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:53:54,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:53:54,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:53:54,944 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 06:53:54,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:53:54,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:53:54,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:53:54,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:53:54,985 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:53:54,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:53:54,985 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:53:54,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:53:54,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:53:54,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:53:54,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:53:54,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:53:54,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:53:54,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:53:54,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:53:54,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:53:54,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:53:54,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:53:54,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:53:54,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:53:54,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:53:54,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:53:54,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:53:54,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:53:54,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:53:54,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:53:54,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:53:54,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:53:54,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:53:54,990 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 06:53:55,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:53:55,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:53:55,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:53:55,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:53:55,516 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:53:55,517 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-09-25 06:53:55,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39a4ee7d0/90932a44330541289b9d8c327e1fb6f4/FLAG18e9ae7bf [2020-09-25 06:53:56,166 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:53:56,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-09-25 06:53:56,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39a4ee7d0/90932a44330541289b9d8c327e1fb6f4/FLAG18e9ae7bf [2020-09-25 06:53:56,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39a4ee7d0/90932a44330541289b9d8c327e1fb6f4 [2020-09-25 06:53:56,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:53:56,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:53:56,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:53:56,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:53:56,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:53:56,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fe5b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56, skipping insertion in model container [2020-09-25 06:53:56,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:53:56,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:53:56,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:53:56,829 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:53:56,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:53:56,874 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:53:56,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56 WrapperNode [2020-09-25 06:53:56,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:53:56,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:53:56,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:53:56,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:53:56,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (1/1) ... [2020-09-25 06:53:56,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:53:56,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:53:56,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:53:56,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:53:56,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (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 06:53:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:53:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:53:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 06:53:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 06:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 06:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:53:57,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:53:57,323 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:53:57,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:53:57 BoogieIcfgContainer [2020-09-25 06:53:57,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:53:57,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:53:57,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:53:57,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:53:57,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:53:56" (1/3) ... [2020-09-25 06:53:57,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ccb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:53:57, skipping insertion in model container [2020-09-25 06:53:57,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:53:56" (2/3) ... [2020-09-25 06:53:57,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ccb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:53:57, skipping insertion in model container [2020-09-25 06:53:57,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:53:57" (3/3) ... [2020-09-25 06:53:57,339 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2020-09-25 06:53:57,352 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:53:57,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:53:57,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:53:57,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:53:57,422 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:53:57,422 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:53:57,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:53:57,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:53:57,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:53:57,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:53:57,423 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:53:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-25 06:53:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 06:53:57,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:57,464 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, 1, 1, 1] [2020-09-25 06:53:57,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:57,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:57,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1819653980, now seen corresponding path program 1 times [2020-09-25 06:53:57,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:57,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200339273] [2020-09-25 06:53:57,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:57,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:58,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:58,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:53:58,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:53:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 06:53:58,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:58,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:58,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:53:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:53:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:53:58,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 06:53:58,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:53:58,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:53:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:58,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:58,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:58,353 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 06:53:58,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200339273] [2020-09-25 06:53:58,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:58,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:53:58,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060844854] [2020-09-25 06:53:58,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:53:58,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:58,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:53:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:53:58,383 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 9 states. [2020-09-25 06:53:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:58,772 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-09-25 06:53:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:53:58,784 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-09-25 06:53:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:58,800 INFO L225 Difference]: With dead ends: 65 [2020-09-25 06:53:58,802 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 06:53:58,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:53:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 06:53:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-09-25 06:53:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 06:53:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-09-25 06:53:58,878 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 28 [2020-09-25 06:53:58,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:58,878 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-09-25 06:53:58,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:53:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-09-25 06:53:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 06:53:58,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:58,881 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 06:53:58,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:53:58,881 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:58,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1522824151, now seen corresponding path program 1 times [2020-09-25 06:53:58,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:58,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979576615] [2020-09-25 06:53:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:58,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:59,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:53:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-09-25 06:53:59,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:59,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:53:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:53:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:53:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:53:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:59,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:53:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:53:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:59,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:59,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:59,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:59,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:53:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:59,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979576615] [2020-09-25 06:53:59,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:53:59,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:53:59,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434814631] [2020-09-25 06:53:59,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:53:59,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:59,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:53:59,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:53:59,775 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 11 states. [2020-09-25 06:54:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:54:00,077 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-09-25 06:54:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:54:00,079 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-09-25 06:54:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:54:00,080 INFO L225 Difference]: With dead ends: 49 [2020-09-25 06:54:00,081 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 06:54:00,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:54:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 06:54:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-09-25 06:54:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 06:54:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-09-25 06:54:00,101 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 34 [2020-09-25 06:54:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:54:00,102 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-09-25 06:54:00,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:54:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-09-25 06:54:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 06:54:00,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:54:00,106 INFO L422 BasicCegarLoop]: trace histogram [3, 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 06:54:00,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:54:00,107 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:54:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:54:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1421125650, now seen corresponding path program 2 times [2020-09-25 06:54:00,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:54:00,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833541720] [2020-09-25 06:54:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:54:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:00,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:00,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:01,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:01,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 06:54:01,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:54:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1634 [2020-09-25 06:54:01,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:01,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:54:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:54:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:54:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:01,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:54:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:01,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:01,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:01,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:54:01,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:54:01,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:01,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:01,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:54:01,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833541720] [2020-09-25 06:54:01,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:54:01,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 06:54:01,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742397943] [2020-09-25 06:54:01,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:54:01,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:54:01,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:54:01,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:54:01,969 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 13 states. [2020-09-25 06:54:02,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:54:02,256 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-25 06:54:02,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:54:02,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-09-25 06:54:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:54:02,258 INFO L225 Difference]: With dead ends: 55 [2020-09-25 06:54:02,259 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 06:54:02,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:54:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 06:54:02,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2020-09-25 06:54:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 06:54:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2020-09-25 06:54:02,267 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 40 [2020-09-25 06:54:02,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:54:02,268 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2020-09-25 06:54:02,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:54:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2020-09-25 06:54:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 06:54:02,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:54:02,270 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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 06:54:02,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:54:02,270 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:54:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:54:02,271 INFO L82 PathProgramCache]: Analyzing trace with hash -264078349, now seen corresponding path program 3 times [2020-09-25 06:54:02,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:54:02,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382013977] [2020-09-25 06:54:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:54:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:02,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:02,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:02,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:02,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:03,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:03,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:54:03,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:54:03,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-25 06:54:03,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:03,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:54:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 06:54:03,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:54:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:03,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:54:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:54:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:54:03,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:54:03,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:54:03,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:54:03,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:54:03,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:54:03,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:54:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:54:03,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:54:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:54:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:54:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:54:03,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382013977] [2020-09-25 06:54:03,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:54:03,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 06:54:03,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83782745] [2020-09-25 06:54:03,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:54:03,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:54:03,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:54:03,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:54:03,451 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 13 states. [2020-09-25 06:54:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:54:03,873 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2020-09-25 06:54:03,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 06:54:03,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 46 [2020-09-25 06:54:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:54:03,874 INFO L225 Difference]: With dead ends: 47 [2020-09-25 06:54:03,874 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:54:03,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2020-09-25 06:54:03,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:54:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:54:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:54:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:54:03,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2020-09-25 06:54:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:54:03,877 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:54:03,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:54:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:54:03,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:54:03,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:54:03,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:54:03,950 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:54:03,950 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 06:54:03,950 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 06:54:03,951 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_65~0 |old(~__return_65~0)|)) [2020-09-25 06:54:03,951 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:54:03,951 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:54:03,951 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:54:03,951 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:54:03,951 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-25 06:54:03,952 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 72) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 06:54:03,953 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 06:54:03,954 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 06:54:03,954 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 72) no Hoare annotation was computed. [2020-09-25 06:54:03,954 INFO L264 CegarLoopResult]: At program point L44(lines 31 65) the Hoare annotation is: (or (and (<= (+ main_~main__x~0 7) (* 3 main_~main__y~0)) (<= (+ main_~main__x~0 2) main_~main__y~0)) (<= (+ main_~main__x~0 51) main_~main__y~0)) [2020-09-25 06:54:03,954 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 06:54:03,954 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 06:54:03,955 INFO L268 CegarLoopResult]: For program point L38(lines 38 64) no Hoare annotation was computed. [2020-09-25 06:54:03,955 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 06:54:03,955 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-25 06:54:03,955 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 55) no Hoare annotation was computed. [2020-09-25 06:54:03,955 INFO L268 CegarLoopResult]: For program point L30(lines 30 69) no Hoare annotation was computed. [2020-09-25 06:54:03,956 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 72) the Hoare annotation is: (and (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|) (= |old(~__return_65~0)| ~__return_65~0)) [2020-09-25 06:54:03,956 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-25 06:54:03,956 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 06:54:03,956 INFO L268 CegarLoopResult]: For program point L24(lines 24 70) no Hoare annotation was computed. [2020-09-25 06:54:03,956 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 06:54:03,956 INFO L268 CegarLoopResult]: For program point L53(lines 53 62) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L18(lines 18 71) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 06:54:03,957 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-25 06:54:03,958 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 06:54:03,958 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-25 06:54:03,958 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 06:54:03,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:54:03 BoogieIcfgContainer [2020-09-25 06:54:03,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:54:03,987 INFO L168 Benchmark]: Toolchain (without parser) took 7470.78 ms. Allocated memory was 146.3 MB in the beginning and 280.0 MB in the end (delta: 133.7 MB). Free memory was 102.5 MB in the beginning and 157.9 MB in the end (delta: -55.4 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:54:03,988 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:54:03,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.47 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:54:03,990 INFO L168 Benchmark]: Boogie Preprocessor took 121.11 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 92.1 MB in the beginning and 181.1 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:54:03,991 INFO L168 Benchmark]: RCFGBuilder took 331.78 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 165.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:54:03,992 INFO L168 Benchmark]: TraceAbstraction took 6652.94 ms. Allocated memory was 202.4 MB in the beginning and 280.0 MB in the end (delta: 77.6 MB). Free memory was 165.1 MB in the beginning and 157.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:54:03,997 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 355.47 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.11 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 92.1 MB in the beginning and 181.1 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 331.78 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 165.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6652.94 ms. Allocated memory was 202.4 MB in the beginning and 280.0 MB in the end (delta: 77.6 MB). Free memory was 165.1 MB in the beginning and 157.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: 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 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (main__x + 7 <= 3 * main__y && main__x + 2 <= main__y) || main__x + 51 <= main__y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 195 SDslu, 381 SDs, 0 SdLazy, 692 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=3, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 38 HoareAnnotationTreeSize, 5 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 21249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/36 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...