./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 f470102c 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-f470102 [2019-11-28 20:23:39,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:23:39,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:23:39,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:23:39,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:23:39,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:23:39,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:23:39,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:23:39,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:23:39,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:23:39,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:23:39,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:23:39,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:23:39,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:23:39,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:23:39,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:23:39,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:23:39,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:23:39,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:23:39,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:23:39,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:23:39,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:23:39,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:23:39,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:23:39,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:23:39,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:23:39,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:23:39,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:23:39,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:23:39,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:23:39,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:23:39,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:23:39,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:23:39,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:23:39,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:23:39,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:23:39,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:23:39,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:23:39,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:23:39,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:23:39,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:23:39,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:23:39,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:23:39,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:23:39,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:23:39,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:23:39,205 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:23:39,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:23:39,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:23:39,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:23:39,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:23:39,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:23:39,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:23:39,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:23:39,207 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:23:39,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:23:39,207 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:23:39,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:23:39,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:23:39,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:23:39,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:23:39,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:23:39,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:23:39,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:23:39,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:23:39,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:23:39,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:23:39,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:23:39,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:23:39,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:23:39,212 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 [2019-11-28 20:23:39,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:23:39,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:23:39,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:23:39,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:23:39,518 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:23:39,519 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2019-11-28 20:23:39,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e519d4eef/66acc143ed8141a1a34c33827a202d9f/FLAGacbc34717 [2019-11-28 20:23:39,994 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:23:39,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2019-11-28 20:23:40,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e519d4eef/66acc143ed8141a1a34c33827a202d9f/FLAGacbc34717 [2019-11-28 20:23:40,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e519d4eef/66acc143ed8141a1a34c33827a202d9f [2019-11-28 20:23:40,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:23:40,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:23:40,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:23:40,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:23:40,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:23:40,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2727f677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40, skipping insertion in model container [2019-11-28 20:23:40,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:23:40,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:23:40,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:23:40,682 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:23:40,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:23:40,720 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:23:40,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40 WrapperNode [2019-11-28 20:23:40,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:23:40,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:23:40,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:23:40,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:23:40,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:23:40,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:23:40,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:23:40,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:23:40,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (1/1) ... [2019-11-28 20:23:40,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:23:40,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:23:40,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:23:40,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:23:40,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (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 [2019-11-28 20:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:23:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:23:41,151 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:23:41,152 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 20:23:41,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:41 BoogieIcfgContainer [2019-11-28 20:23:41,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:23:41,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:23:41,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:23:41,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:23:41,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:23:40" (1/3) ... [2019-11-28 20:23:41,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b82c52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:41, skipping insertion in model container [2019-11-28 20:23:41,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:40" (2/3) ... [2019-11-28 20:23:41,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b82c52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:41, skipping insertion in model container [2019-11-28 20:23:41,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:41" (3/3) ... [2019-11-28 20:23:41,161 INFO L109 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1.c [2019-11-28 20:23:41,171 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:23:41,178 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 20:23:41,190 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 20:23:41,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:23:41,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:23:41,216 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:23:41,216 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:23:41,216 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:23:41,216 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:23:41,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:23:41,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:23:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 20:23:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 20:23:41,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:41,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 20:23:41,240 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:41,245 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2019-11-28 20:23:41,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:41,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429940112] [2019-11-28 20:23:41,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:41,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429940112] [2019-11-28 20:23:41,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:23:41,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:23:41,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107100031] [2019-11-28 20:23:41,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:23:41,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:41,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:23:41,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:23:41,433 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-28 20:23:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:41,599 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2019-11-28 20:23:41,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:23:41,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 20:23:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:41,611 INFO L225 Difference]: With dead ends: 40 [2019-11-28 20:23:41,611 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 20:23:41,615 INFO L630 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 [2019-11-28 20:23:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 20:23:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2019-11-28 20:23:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 20:23:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-28 20:23:41,649 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2019-11-28 20:23:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:41,650 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-28 20:23:41,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:23:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-28 20:23:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:23:41,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:41,651 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:23:41,652 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2019-11-28 20:23:41,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:41,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357847586] [2019-11-28 20:23:41,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:41,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357847586] [2019-11-28 20:23:41,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:23:41,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:23:41,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517557108] [2019-11-28 20:23:41,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:23:41,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:41,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:23:41,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:23:41,686 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-11-28 20:23:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:41,711 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 20:23:41,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:23:41,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 20:23:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:41,713 INFO L225 Difference]: With dead ends: 14 [2019-11-28 20:23:41,713 INFO L226 Difference]: Without dead ends: 13 [2019-11-28 20:23:41,714 INFO L630 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 [2019-11-28 20:23:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-28 20:23:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 20:23:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:23:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-28 20:23:41,718 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-11-28 20:23:41,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:41,719 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 20:23:41,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:23:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-28 20:23:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:23:41,719 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:41,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:23:41,720 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:41,720 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-28 20:23:41,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:41,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139168765] [2019-11-28 20:23:41,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:41,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139168765] [2019-11-28 20:23:41,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:23:41,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:23:41,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188232511] [2019-11-28 20:23:41,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:23:41,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:41,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:23:41,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:23:41,756 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-28 20:23:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:41,779 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 20:23:41,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:23:41,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 20:23:41,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:41,781 INFO L225 Difference]: With dead ends: 14 [2019-11-28 20:23:41,782 INFO L226 Difference]: Without dead ends: 13 [2019-11-28 20:23:41,783 INFO L630 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 [2019-11-28 20:23:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-28 20:23:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-28 20:23:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 20:23:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-28 20:23:41,789 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-28 20:23:41,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:41,791 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-28 20:23:41,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:23:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-28 20:23:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:23:41,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:41,792 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:23:41,792 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:41,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166603, now seen corresponding path program 1 times [2019-11-28 20:23:41,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:41,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198411084] [2019-11-28 20:23:41,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:41,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198411084] [2019-11-28 20:23:41,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263571893] [2019-11-28 20:23:41,873 INFO L94 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 [2019-11-28 20:23:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:41,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:23:41,910 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:23:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 20:23:41,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 20:23:41,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2019-11-28 20:23:41,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836940353] [2019-11-28 20:23:41,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:23:41,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:41,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:23:41,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:23:41,960 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-11-28 20:23:42,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:42,004 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-28 20:23:42,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:23:42,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:23:42,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:42,007 INFO L225 Difference]: With dead ends: 12 [2019-11-28 20:23:42,007 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 20:23:42,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:23:42,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 20:23:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-28 20:23:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 20:23:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-28 20:23:42,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2019-11-28 20:23:42,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:42,017 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-28 20:23:42,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:23:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-11-28 20:23:42,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:23:42,019 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:42,020 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 20:23:42,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:23:42,227 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:42,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:42,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2019-11-28 20:23:42,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:42,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051873320] [2019-11-28 20:23:42,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:42,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051873320] [2019-11-28 20:23:42,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956539399] [2019-11-28 20:23:42,283 INFO L94 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 [2019-11-28 20:23:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:42,319 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:23:42,321 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:23:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:42,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:23:42,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-28 20:23:42,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114387579] [2019-11-28 20:23:42,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:23:42,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:42,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:23:42,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:23:42,334 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 4 states. [2019-11-28 20:23:42,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:42,396 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-11-28 20:23:42,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:23:42,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:23:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:42,398 INFO L225 Difference]: With dead ends: 21 [2019-11-28 20:23:42,398 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 20:23:42,399 INFO L630 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 [2019-11-28 20:23:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 20:23:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2019-11-28 20:23:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:23:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-28 20:23:42,409 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-11-28 20:23:42,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:42,410 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-28 20:23:42,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:23:42,410 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-28 20:23:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:23:42,411 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:42,411 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-28 20:23:42,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:23:42,615 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:42,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2000108501, now seen corresponding path program 2 times [2019-11-28 20:23:42,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:42,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403640181] [2019-11-28 20:23:42,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:42,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403640181] [2019-11-28 20:23:42,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107265275] [2019-11-28 20:23:42,717 INFO L92 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) [2019-11-28 20:23:42,745 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-28 20:23:42,745 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:23:42,746 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:23:42,748 INFO L287 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:23:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-28 20:23:42,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:23:42,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2019-11-28 20:23:42,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632197899] [2019-11-28 20:23:42,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 20:23:42,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:42,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 20:23:42,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:23:42,787 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 9 states. [2019-11-28 20:23:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:43,058 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-11-28 20:23:43,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 20:23:43,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-28 20:23:43,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:43,060 INFO L225 Difference]: With dead ends: 29 [2019-11-28 20:23:43,060 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:23:43,061 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2019-11-28 20:23:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:23:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:23:43,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:23:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:23:43,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-28 20:23:43,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:43,063 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:23:43,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 20:23:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:23:43,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:23:43,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:23:43,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 20:23:43,342 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 20:23:43,343 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 20:23:43,343 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-28 20:23:43,343 INFO L242 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) (<= 0 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~i~0 2147483646)) [2019-11-28 20:23:43,343 INFO L246 CegarLoopResult]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L242 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))) [2019-11-28 20:23:43,344 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 20:23:43,344 INFO L249 CegarLoopResult]: At program point L26(lines 14 27) the Hoare annotation is: true [2019-11-28 20:23:43,345 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-28 20:23:43,345 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-28 20:23:43,345 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-28 20:23:43,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:23:43 BoogieIcfgContainer [2019-11-28 20:23:43,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:23:43,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:23:43,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:23:43,368 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:23:43,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:41" (3/4) ... [2019-11-28 20:23:43,372 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:23:43,384 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 20:23:43,384 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 20:23:43,431 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:23:43,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:23:43,434 INFO L168 Benchmark]: Toolchain (without parser) took 3060.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -56.3 MB). Peak memory consumption was 96.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:43,435 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:23:43,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:43,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.92 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:23:43,437 INFO L168 Benchmark]: Boogie Preprocessor took 111.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -201.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:43,437 INFO L168 Benchmark]: RCFGBuilder took 277.44 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:43,438 INFO L168 Benchmark]: TraceAbstraction took 2213.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 121.4 MB). Peak memory consumption was 121.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:43,439 INFO L168 Benchmark]: Witness Printer took 63.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:23:43,442 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 41.92 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -201.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 277.44 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2213.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 121.4 MB). Peak memory consumption was 121.4 MB. Max. memory is 11.5 GB. * Witness Printer took 63.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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: ((n <= 2147483647 && 0 <= i + 2147483648) && 0 <= j) && i <= 2147483646 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 98 SDslu, 19 SDs, 0 SdLazy, 103 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s 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, 14 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 377 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1215 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...