./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c08193784b646afd298f73ae6296b7af2e0cac1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:31:01,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:31:01,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:31:02,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:31:02,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:31:02,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:31:02,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:31:02,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:31:02,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:31:02,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:31:02,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:31:02,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:31:02,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:31:02,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:31:02,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:31:02,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:31:02,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:31:02,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:31:02,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:31:02,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:31:02,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:31:02,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:31:02,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:31:02,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:31:02,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:31:02,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:31:02,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:31:02,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:31:02,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:31:02,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:31:02,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:31:02,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:31:02,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:31:02,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:31:02,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:31:02,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:31:02,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:31:02,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:31:02,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:31:02,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:31:02,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:31:02,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:31:02,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:31:02,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:31:02,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:31:02,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:31:02,148 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:31:02,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:31:02,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:31:02,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:31:02,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:31:02,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:31:02,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:31:02,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:31:02,151 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:31:02,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:31:02,152 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:31:02,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:31:02,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:31:02,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:31:02,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:31:02,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:31:02,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:31:02,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:31:02,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:31:02,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:31:02,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:31:02,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:31:02,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:31:02,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:31:02,156 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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c08193784b646afd298f73ae6296b7af2e0cac1 [2020-10-19 18:31:02,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:31:02,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:31:02,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:31:02,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:31:02,506 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:31:02,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2020-10-19 18:31:02,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62f4a8665/e56b6d321cd44cd19e6ec39ec542b410/FLAGd65a1ad7b [2020-10-19 18:31:03,042 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:31:03,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2020-10-19 18:31:03,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62f4a8665/e56b6d321cd44cd19e6ec39ec542b410/FLAGd65a1ad7b [2020-10-19 18:31:03,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62f4a8665/e56b6d321cd44cd19e6ec39ec542b410 [2020-10-19 18:31:03,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:31:03,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:31:03,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:31:03,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:31:03,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:31:03,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e68dc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03, skipping insertion in model container [2020-10-19 18:31:03,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:31:03,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:31:03,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:31:03,710 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:31:03,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:31:03,746 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:31:03,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03 WrapperNode [2020-10-19 18:31:03,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:31:03,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:31:03,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:31:03,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:31:03,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:31:03,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:31:03,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:31:03,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:31:03,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (1/1) ... [2020-10-19 18:31:03,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:31:03,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:31:03,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:31:03,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:31:03,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (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 [2020-10-19 18:31:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:31:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:31:04,135 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:31:04,135 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:31:04,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:31:04 BoogieIcfgContainer [2020-10-19 18:31:04,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:31:04,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:31:04,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:31:04,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:31:04,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:31:03" (1/3) ... [2020-10-19 18:31:04,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b82b199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:31:04, skipping insertion in model container [2020-10-19 18:31:04,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:31:03" (2/3) ... [2020-10-19 18:31:04,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b82b199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:31:04, skipping insertion in model container [2020-10-19 18:31:04,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:31:04" (3/3) ... [2020-10-19 18:31:04,148 INFO L111 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1.c [2020-10-19 18:31:04,160 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:31:04,168 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-19 18:31:04,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-19 18:31:04,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:31:04,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:31:04,216 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:31:04,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:31:04,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:31:04,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:31:04,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:31:04,218 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:31:04,242 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-19 18:31:04,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:31:04,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:04,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:31:04,254 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:04,263 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2020-10-19 18:31:04,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:04,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472666590] [2020-10-19 18:31:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:04,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472666590] [2020-10-19 18:31:04,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:31:04,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:31:04,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907275939] [2020-10-19 18:31:04,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:31:04,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:04,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:31:04,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:31:04,476 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-10-19 18:31:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:04,579 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2020-10-19 18:31:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:31:04,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-19 18:31:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:04,593 INFO L225 Difference]: With dead ends: 40 [2020-10-19 18:31:04,594 INFO L226 Difference]: Without dead ends: 18 [2020-10-19 18:31:04,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:31:04,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-19 18:31:04,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2020-10-19 18:31:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-19 18:31:04,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-10-19 18:31:04,634 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2020-10-19 18:31:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:04,635 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-10-19 18:31:04,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:31:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-10-19 18:31:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:31:04,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:04,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:31:04,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:31:04,638 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:04,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:04,638 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2020-10-19 18:31:04,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:04,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694596049] [2020-10-19 18:31:04,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:04,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694596049] [2020-10-19 18:31:04,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:31:04,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:31:04,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485263991] [2020-10-19 18:31:04,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:31:04,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:04,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:31:04,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:31:04,671 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2020-10-19 18:31:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:04,694 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-19 18:31:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:31:04,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:31:04,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:04,696 INFO L225 Difference]: With dead ends: 14 [2020-10-19 18:31:04,696 INFO L226 Difference]: Without dead ends: 13 [2020-10-19 18:31:04,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:31:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-19 18:31:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 18:31:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:31:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-10-19 18:31:04,702 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2020-10-19 18:31:04,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:04,703 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:31:04,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:31:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-10-19 18:31:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:31:04,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:04,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:31:04,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:31:04,705 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:04,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:04,705 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-19 18:31:04,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:04,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330418445] [2020-10-19 18:31:04,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:04,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330418445] [2020-10-19 18:31:04,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:31:04,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:31:04,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133127462] [2020-10-19 18:31:04,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:31:04,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:04,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:31:04,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:31:04,732 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-10-19 18:31:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:04,747 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-19 18:31:04,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:31:04,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:31:04,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:04,749 INFO L225 Difference]: With dead ends: 14 [2020-10-19 18:31:04,749 INFO L226 Difference]: Without dead ends: 13 [2020-10-19 18:31:04,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:31:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-19 18:31:04,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-10-19 18:31:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:31:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-19 18:31:04,755 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-10-19 18:31:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:04,755 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-19 18:31:04,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:31:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-10-19 18:31:04,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:31:04,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:04,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:31:04,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:31:04,757 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:04,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:04,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166603, now seen corresponding path program 1 times [2020-10-19 18:31:04,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:04,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920990799] [2020-10-19 18:31:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:04,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920990799] [2020-10-19 18:31:04,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522563567] [2020-10-19 18:31:04,802 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 [2020-10-19 18:31:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:04,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:31:04,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:31:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:31:04,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:31:04,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2020-10-19 18:31:04,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649548302] [2020-10-19 18:31:04,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:31:04,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:04,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:31:04,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:31:04,912 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2020-10-19 18:31:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:04,939 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-10-19 18:31:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:31:04,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:31:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:04,941 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:31:04,941 INFO L226 Difference]: Without dead ends: 11 [2020-10-19 18:31:04,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:31:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-19 18:31:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-10-19 18:31:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-19 18:31:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-10-19 18:31:04,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2020-10-19 18:31:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:04,947 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-19 18:31:04,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:31:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-10-19 18:31:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:31:04,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:04,949 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-19 18:31:05,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:31:05,161 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:05,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2020-10-19 18:31:05,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:05,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821379327] [2020-10-19 18:31:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:05,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821379327] [2020-10-19 18:31:05,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663724632] [2020-10-19 18:31:05,206 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) [2020-10-19 18:31:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:05,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:31:05,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:31:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:05,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:31:05,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-19 18:31:05,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718952779] [2020-10-19 18:31:05,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:31:05,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:05,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:31:05,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:31:05,248 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 4 states. [2020-10-19 18:31:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:05,285 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-10-19 18:31:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:31:05,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:31:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:05,287 INFO L225 Difference]: With dead ends: 21 [2020-10-19 18:31:05,287 INFO L226 Difference]: Without dead ends: 20 [2020-10-19 18:31:05,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:31:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-19 18:31:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2020-10-19 18:31:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:31:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-19 18:31:05,294 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-10-19 18:31:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:05,294 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 18:31:05,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:31:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-10-19 18:31:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:31:05,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:31:05,296 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-10-19 18:31:05,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:31:05,509 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:31:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:31:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2000108501, now seen corresponding path program 2 times [2020-10-19 18:31:05,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:31:05,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603404303] [2020-10-19 18:31:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:31:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:31:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:31:05,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603404303] [2020-10-19 18:31:05,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491967427] [2020-10-19 18:31:05,552 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 [2020-10-19 18:31:05,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:31:05,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:31:05,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:31:05,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:31:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 18:31:05,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:31:05,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2020-10-19 18:31:05,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371588921] [2020-10-19 18:31:05,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:31:05,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:31:05,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:31:05,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:31:05,625 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 8 states. [2020-10-19 18:31:05,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:31:05,819 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2020-10-19 18:31:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:31:05,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-19 18:31:05,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:31:05,821 INFO L225 Difference]: With dead ends: 30 [2020-10-19 18:31:05,821 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:31:05,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:31:05,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:31:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:31:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:31:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:31:05,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-19 18:31:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:31:05,823 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:31:05,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:31:05,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:31:05,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:31:06,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:31:06,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:31:06,087 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-19 18:31:06,087 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:31:06,088 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-19 18:31:06,088 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~i~0 2147483646) (<= ULTIMATE.start_main_~n~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648))) [2020-10-19 18:31:06,088 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2020-10-19 18:31:06,088 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648))) [2020-10-19 18:31:06,089 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2020-10-19 18:31:06,089 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-19 18:31:06,089 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-19 18:31:06,089 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:31:06,089 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:31:06,089 INFO L277 CegarLoopResult]: At program point L26(lines 14 27) the Hoare annotation is: true [2020-10-19 18:31:06,090 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 18:31:06,090 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-19 18:31:06,090 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-19 18:31:06,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:31:06 BoogieIcfgContainer [2020-10-19 18:31:06,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:31:06,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:31:06,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:31:06,111 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:31:06,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:31:04" (3/4) ... [2020-10-19 18:31:06,117 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:31:06,129 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:31:06,130 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:31:06,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:31:06,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:31:06,181 INFO L168 Benchmark]: Toolchain (without parser) took 2755.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 957.3 MB in the beginning and 983.8 MB in the end (delta: -26.5 MB). Peak memory consumption was 95.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:31:06,181 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:31:06,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.23 ms. Allocated memory is still 1.0 GB. Free memory was 957.3 MB in the beginning and 946.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:31:06,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:31:06,183 INFO L168 Benchmark]: Boogie Preprocessor took 78.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:31:06,184 INFO L168 Benchmark]: RCFGBuilder took 279.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:31:06,185 INFO L168 Benchmark]: TraceAbstraction took 1971.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:31:06,185 INFO L168 Benchmark]: Witness Printer took 67.20 ms. Allocated memory is still 1.2 GB. Free memory is still 983.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:31:06,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.23 ms. Allocated memory is still 1.0 GB. Free memory was 957.3 MB in the beginning and 946.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.04 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 279.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1971.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.20 ms. Allocated memory is still 1.2 GB. Free memory is still 983.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: n <= 2147483647 && 0 <= i + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= j && i <= 2147483646) && n <= 2147483647) && 0 <= i + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 89 SDslu, 19 SDs, 0 SdLazy, 96 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, 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, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 417 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1011 SizeOfPredicates, 3 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 6/20 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...