./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Fibonacci04.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db54bc93f5615de8b0a803193005d14234c84165 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:45:37,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:45:37,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:45:37,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:45:37,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:45:37,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:45:37,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:45:37,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:45:37,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:45:37,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:45:37,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:45:37,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:45:37,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:45:37,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:45:37,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:45:37,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:45:37,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:45:37,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:45:37,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:45:37,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:45:37,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:45:37,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:45:37,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:45:37,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:45:37,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:45:37,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:45:37,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:45:37,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:45:37,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:45:37,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:45:37,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:45:37,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:45:37,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:45:37,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:45:37,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:45:37,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:45:38,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:45:38,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:45:38,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:45:38,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:45:38,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:45:38,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:45:38,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:45:38,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:45:38,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:45:38,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:45:38,043 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:45:38,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:45:38,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:45:38,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:45:38,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:45:38,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:45:38,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:45:38,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:45:38,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:45:38,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:45:38,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:45:38,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:45:38,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:45:38,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:45:38,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:45:38,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:45:38,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:45:38,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:45:38,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:45:38,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:45:38,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:45:38,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:45:38,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:45:38,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:45:38,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:45:38,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db54bc93f5615de8b0a803193005d14234c84165 [2020-10-20 01:45:38,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:45:38,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:45:38,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:45:38,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:45:38,303 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:45:38,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci04.c [2020-10-20 01:45:38,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc6d203e/a989b37d36304d5f9591cc62446ea42e/FLAG6a4bd1938 [2020-10-20 01:45:38,888 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:45:38,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci04.c [2020-10-20 01:45:38,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc6d203e/a989b37d36304d5f9591cc62446ea42e/FLAG6a4bd1938 [2020-10-20 01:45:39,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dc6d203e/a989b37d36304d5f9591cc62446ea42e [2020-10-20 01:45:39,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:45:39,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:45:39,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:45:39,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:45:39,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:45:39,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119d70f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39, skipping insertion in model container [2020-10-20 01:45:39,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:45:39,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:45:39,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:45:39,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:45:39,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:45:39,577 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:45:39,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39 WrapperNode [2020-10-20 01:45:39,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:45:39,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:45:39,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:45:39,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:45:39,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:45:39,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:45:39,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:45:39,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:45:39,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... [2020-10-20 01:45:39,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:45:39,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:45:39,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:45:39,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:45:39,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:45:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-20 01:45:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-20 01:45:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:45:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:45:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:45:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:45:39,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:45:39,908 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 01:45:39,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:39 BoogieIcfgContainer [2020-10-20 01:45:39,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:45:39,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:45:39,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:45:39,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:45:39,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:45:39" (1/3) ... [2020-10-20 01:45:39,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ff78ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:45:39, skipping insertion in model container [2020-10-20 01:45:39,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:45:39" (2/3) ... [2020-10-20 01:45:39,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ff78ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:45:39, skipping insertion in model container [2020-10-20 01:45:39,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:39" (3/3) ... [2020-10-20 01:45:39,929 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-10-20 01:45:39,941 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:45:39,948 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:45:39,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:45:39,986 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:45:39,986 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:45:39,987 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:45:39,987 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:45:39,987 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:45:39,987 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:45:39,987 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:45:39,987 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:45:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-20 01:45:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:45:40,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:40,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:40,015 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:40,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:40,022 INFO L82 PathProgramCache]: Analyzing trace with hash -691997320, now seen corresponding path program 1 times [2020-10-20 01:45:40,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:40,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158868546] [2020-10-20 01:45:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:45:40,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158868546] [2020-10-20 01:45:40,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:45:40,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:45:40,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828915590] [2020-10-20 01:45:40,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:45:40,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:40,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:45:40,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:45:40,279 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-20 01:45:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:40,417 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-20 01:45:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:45:40,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-20 01:45:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:40,430 INFO L225 Difference]: With dead ends: 32 [2020-10-20 01:45:40,431 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 01:45:40,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:45:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 01:45:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 01:45:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 01:45:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-10-20 01:45:40,477 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2020-10-20 01:45:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:40,478 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-10-20 01:45:40,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:45:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-10-20 01:45:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:45:40,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:40,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:40,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:45:40,481 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash 717045018, now seen corresponding path program 1 times [2020-10-20 01:45:40,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:40,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819517853] [2020-10-20 01:45:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:45:40,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819517853] [2020-10-20 01:45:40,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:45:40,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:45:40,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682459904] [2020-10-20 01:45:40,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:45:40,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:40,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:45:40,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:45:40,574 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 5 states. [2020-10-20 01:45:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:40,675 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2020-10-20 01:45:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:45:40,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 01:45:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:40,677 INFO L225 Difference]: With dead ends: 24 [2020-10-20 01:45:40,677 INFO L226 Difference]: Without dead ends: 20 [2020-10-20 01:45:40,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:45:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-20 01:45:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-10-20 01:45:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 01:45:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-10-20 01:45:40,686 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2020-10-20 01:45:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:40,686 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-10-20 01:45:40,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:45:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-10-20 01:45:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:45:40,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:40,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:40,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:45:40,688 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:40,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1426922965, now seen corresponding path program 1 times [2020-10-20 01:45:40,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:40,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368094645] [2020-10-20 01:45:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-20 01:45:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 01:45:40,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368094645] [2020-10-20 01:45:40,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367794486] [2020-10-20 01:45:40,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:40,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:45:40,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-20 01:45:41,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:41,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-10-20 01:45:41,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867875040] [2020-10-20 01:45:41,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 01:45:41,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:41,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 01:45:41,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:45:41,025 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 9 states. [2020-10-20 01:45:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:41,145 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-10-20 01:45:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:45:41,146 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 01:45:41,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:41,159 INFO L225 Difference]: With dead ends: 35 [2020-10-20 01:45:41,160 INFO L226 Difference]: Without dead ends: 20 [2020-10-20 01:45:41,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:45:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-20 01:45:41,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-20 01:45:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 01:45:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2020-10-20 01:45:41,168 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2020-10-20 01:45:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:41,168 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-10-20 01:45:41,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 01:45:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2020-10-20 01:45:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:45:41,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:41,170 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:41,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 01:45:41,385 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:41,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:41,386 INFO L82 PathProgramCache]: Analyzing trace with hash 301752507, now seen corresponding path program 1 times [2020-10-20 01:45:41,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:41,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475778960] [2020-10-20 01:45:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 01:45:41,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475778960] [2020-10-20 01:45:41,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677609111] [2020-10-20 01:45:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:45:41,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 01:45:41,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:41,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 01:45:41,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433923557] [2020-10-20 01:45:41,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:45:41,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:41,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:45:41,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:45:41,595 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 8 states. [2020-10-20 01:45:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:41,712 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2020-10-20 01:45:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:45:41,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-20 01:45:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:41,715 INFO L225 Difference]: With dead ends: 38 [2020-10-20 01:45:41,716 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 01:45:41,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-20 01:45:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 01:45:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 01:45:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 01:45:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-10-20 01:45:41,728 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2020-10-20 01:45:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:41,728 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-10-20 01:45:41,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:45:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-10-20 01:45:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 01:45:41,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:41,731 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:41,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:41,946 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:41,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1093063438, now seen corresponding path program 2 times [2020-10-20 01:45:41,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:41,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280941447] [2020-10-20 01:45:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:41,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:45:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-20 01:45:42,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280941447] [2020-10-20 01:45:42,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117399443] [2020-10-20 01:45:42,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:42,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 01:45:42,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:45:42,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 01:45:42,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-20 01:45:42,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:42,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-10-20 01:45:42,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823788073] [2020-10-20 01:45:42,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 01:45:42,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:42,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 01:45:42,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 01:45:42,247 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 12 states. [2020-10-20 01:45:42,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:42,490 INFO L93 Difference]: Finished difference Result 68 states and 103 transitions. [2020-10-20 01:45:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 01:45:42,491 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-10-20 01:45:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:42,493 INFO L225 Difference]: With dead ends: 68 [2020-10-20 01:45:42,505 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 01:45:42,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-10-20 01:45:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 01:45:42,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 01:45:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 01:45:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-10-20 01:45:42,515 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 37 [2020-10-20 01:45:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:42,515 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-10-20 01:45:42,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 01:45:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-10-20 01:45:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-20 01:45:42,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:42,518 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:42,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:42,733 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1356719978, now seen corresponding path program 3 times [2020-10-20 01:45:42,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:42,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167821912] [2020-10-20 01:45:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:45:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:45:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-20 01:45:42,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167821912] [2020-10-20 01:45:42,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690430396] [2020-10-20 01:45:42,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:43,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-10-20 01:45:43,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:45:43,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 01:45:43,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-20 01:45:43,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:43,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-10-20 01:45:43,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550136387] [2020-10-20 01:45:43,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 01:45:43,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:43,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 01:45:43,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:45:43,090 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 11 states. [2020-10-20 01:45:43,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:43,280 INFO L93 Difference]: Finished difference Result 84 states and 123 transitions. [2020-10-20 01:45:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 01:45:43,281 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-20 01:45:43,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:43,283 INFO L225 Difference]: With dead ends: 84 [2020-10-20 01:45:43,284 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:45:43,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:45:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:45:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-10-20 01:45:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 01:45:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-10-20 01:45:43,295 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 65 [2020-10-20 01:45:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:43,295 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-10-20 01:45:43,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 01:45:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-10-20 01:45:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-20 01:45:43,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:43,300 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 17, 10, 10, 10, 10, 10, 10, 10, 7, 4, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:43,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:43,514 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 2096727674, now seen corresponding path program 4 times [2020-10-20 01:45:43,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:43,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346100480] [2020-10-20 01:45:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:45:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:45:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:45:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:45:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-20 01:45:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-20 01:45:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-20 01:45:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-20 01:45:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:43,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-20 01:45:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:45:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 298 proven. 351 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2020-10-20 01:45:44,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346100480] [2020-10-20 01:45:44,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598771315] [2020-10-20 01:45:44,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:45:44,129 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-20 01:45:44,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:45:44,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 01:45:44,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:45:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 327 proven. 131 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2020-10-20 01:45:44,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:45:44,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 17 [2020-10-20 01:45:44,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335405970] [2020-10-20 01:45:44,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-20 01:45:44,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:45:44,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-20 01:45:44,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-10-20 01:45:44,268 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 17 states. [2020-10-20 01:45:44,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:45:44,921 INFO L93 Difference]: Finished difference Result 118 states and 209 transitions. [2020-10-20 01:45:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-20 01:45:44,922 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 147 [2020-10-20 01:45:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:45:44,927 INFO L225 Difference]: With dead ends: 118 [2020-10-20 01:45:44,927 INFO L226 Difference]: Without dead ends: 62 [2020-10-20 01:45:44,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2020-10-20 01:45:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-20 01:45:44,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-20 01:45:44,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-20 01:45:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2020-10-20 01:45:44,950 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 147 [2020-10-20 01:45:44,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:45:44,952 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2020-10-20 01:45:44,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-20 01:45:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2020-10-20 01:45:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-20 01:45:44,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:45:44,954 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:45:45,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-20 01:45:45,173 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:45:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:45:45,174 INFO L82 PathProgramCache]: Analyzing trace with hash 876254947, now seen corresponding path program 5 times [2020-10-20 01:45:45,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:45:45,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104619709] [2020-10-20 01:45:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:45:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:45:45,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:45:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:45:45,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:45:45,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:45:45,246 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:45:45,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:45:45,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:45:45 BoogieIcfgContainer [2020-10-20 01:45:45,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:45:45,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:45:45,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:45:45,326 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:45:45,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:45:39" (3/4) ... [2020-10-20 01:45:45,330 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:45:45,418 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:45:45,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:45:45,422 INFO L168 Benchmark]: Toolchain (without parser) took 6109.58 ms. Allocated memory was 43.0 MB in the beginning and 75.5 MB in the end (delta: 32.5 MB). Free memory was 23.0 MB in the beginning and 14.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,422 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.43 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 22.2 MB in the beginning and 24.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,430 INFO L168 Benchmark]: Boogie Preprocessor took 16.77 ms. Allocated memory is still 43.5 MB. Free memory was 22.9 MB in the beginning and 21.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,431 INFO L168 Benchmark]: RCFGBuilder took 292.20 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 21.6 MB in the beginning and 28.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,432 INFO L168 Benchmark]: TraceAbstraction took 5405.06 ms. Allocated memory was 45.6 MB in the beginning and 75.5 MB in the end (delta: 29.9 MB). Free memory was 27.7 MB in the beginning and 21.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,432 INFO L168 Benchmark]: Witness Printer took 93.04 ms. Allocated memory is still 75.5 MB. Free memory was 21.5 MB in the beginning and 14.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:45:45,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 261.43 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 22.2 MB in the beginning and 24.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 16.77 ms. Allocated memory is still 43.5 MB. Free memory was 22.9 MB in the beginning and 21.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 292.20 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 21.6 MB in the beginning and 28.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5405.06 ms. Allocated memory was 45.6 MB in the beginning and 75.5 MB in the end (delta: 29.9 MB). Free memory was 27.7 MB in the beginning and 21.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.3 GB. * Witness Printer took 93.04 ms. Allocated memory is still 75.5 MB. Free memory was 21.5 MB in the beginning and 14.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L30] int x = __VERIFIER_nondet_int(); [L31] CALL, EXPR fibonacci(x) VAL [\old(n)=5] [L19] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L21] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=4] [L19] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L21] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=3] [L19] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L21] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1, n=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, fibonacci(n-1)=1, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0, n=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, fibonacci(n-1)=1, fibonacci(n-2)=0, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=3, fibonacci(n-1)=1, n=3] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1, n=1] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=3, fibonacci(n-1)=1, fibonacci(n-2)=1, n=3] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=4, fibonacci(n-1)=2, n=4] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1, n=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, fibonacci(n-1)=1, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0, n=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, fibonacci(n-1)=1, fibonacci(n-2)=0, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=4, fibonacci(n-1)=2, fibonacci(n-2)=1, n=4] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=5, fibonacci(n-1)=3, n=5] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=3] [L19] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L21] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1, n=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, fibonacci(n-1)=1, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0, n=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, fibonacci(n-1)=1, fibonacci(n-2)=0, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=3, fibonacci(n-1)=1, n=3] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1, n=1] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=3, fibonacci(n-1)=1, fibonacci(n-2)=1, n=3] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=5, fibonacci(n-1)=3, fibonacci(n-2)=2, n=5] [L24] return fibonacci(n-1) + fibonacci(n-2); [L31] RET, EXPR fibonacci(x) [L31] int result = fibonacci(x); [L32] COND FALSE !(x != 5 || result == 3) [L3] __assert_fail("0", "Fibonacci04.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 8, TraceHistogramMax: 21, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 117 SDtfs, 231 SDslu, 371 SDs, 0 SdLazy, 848 SolverSat, 205 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 379 SyntacticMatches, 5 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=7, 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, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 719 NumberOfCodeBlocks, 673 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 601 ConstructedInterpolants, 0 QuantifiedInterpolants, 97977 SizeOfPredicates, 20 NumberOfNonLiveVariables, 672 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2193/2834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...