./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/recursive-simple/id_b3_o2-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bf945356a28265a842df89cdbf40bfa9a223140 ........................................................................................................................................................................................................................................................................................................................................................ 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 20:26:32,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:26:32,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:26:32,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:26:32,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:26:32,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:26:32,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:26:32,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:26:32,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:26:32,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:26:32,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:26:32,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:26:32,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:26:32,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:26:32,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:26:32,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:26:32,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:26:32,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:26:32,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:26:32,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:26:32,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:26:32,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:26:32,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:26:32,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:26:32,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:26:32,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:26:32,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:26:32,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:26:32,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:26:32,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:26:32,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:26:32,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:26:32,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:26:32,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:26:32,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:26:32,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:26:32,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:26:32,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:26:32,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:26:32,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:26:32,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:26:32,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-28 20:26:32,764 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:26:32,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:26:32,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:26:32,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:26:32,767 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:26:32,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:26:32,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:26:32,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:26:32,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:26:32,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:26:32,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:26:32,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:26:32,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:26:32,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:26:32,771 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:26:32,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:26:32,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:26:32,772 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:26:32,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:26:32,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:26:32,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:26:32,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:26:32,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:26:32,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:26:32,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:26:32,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:26:32,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:26:32,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:26:32,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:26:32,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:26:32,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:26:32,775 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf945356a28265a842df89cdbf40bfa9a223140 [2019-11-28 20:26:33,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:26:33,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:26:33,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:26:33,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:26:33,136 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:26:33,137 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2019-11-28 20:26:33,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21955ec98/c29eab14f1ec46d38c2ce6fc581b3235/FLAGc3d3a06f9 [2019-11-28 20:26:33,656 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:26:33,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2019-11-28 20:26:33,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21955ec98/c29eab14f1ec46d38c2ce6fc581b3235/FLAGc3d3a06f9 [2019-11-28 20:26:34,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21955ec98/c29eab14f1ec46d38c2ce6fc581b3235 [2019-11-28 20:26:34,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:26:34,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:26:34,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:34,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:26:34,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:26:34,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fbe0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34, skipping insertion in model container [2019-11-28 20:26:34,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:26:34,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:26:34,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:34,333 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:26:34,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:34,358 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:26:34,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34 WrapperNode [2019-11-28 20:26:34,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:34,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:34,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:26:34,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:26:34,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:34,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:26:34,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:26:34,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:26:34,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (1/1) ... [2019-11-28 20:26:34,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:26:34,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:26:34,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:26:34,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:26:34,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (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 20:26:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:26:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:26:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-28 20:26:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-28 20:26:34,724 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:26:34,724 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 20:26:34,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:34 BoogieIcfgContainer [2019-11-28 20:26:34,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:26:34,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:26:34,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:26:34,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:26:34,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:26:34" (1/3) ... [2019-11-28 20:26:34,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c996f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:34, skipping insertion in model container [2019-11-28 20:26:34,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:34" (2/3) ... [2019-11-28 20:26:34,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c996f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:34, skipping insertion in model container [2019-11-28 20:26:34,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:34" (3/3) ... [2019-11-28 20:26:34,733 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o2-2.c [2019-11-28 20:26:34,744 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:26:34,752 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 20:26:34,766 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 20:26:34,791 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:26:34,792 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:26:34,792 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:26:34,792 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:26:34,792 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:26:34,792 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:26:34,792 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:26:34,792 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:26:34,808 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-28 20:26:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:26:34,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:26:34,814 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:26:34,814 INFO L410 AbstractCegarLoop]: === Iteration 1 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:26:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:26:34,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1550668038, now seen corresponding path program 1 times [2019-11-28 20:26:34,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:26:34,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385798649] [2019-11-28 20:26:34,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:26:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 20:26:35,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385798649] [2019-11-28 20:26:35,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:26:35,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:26:35,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199649733] [2019-11-28 20:26:35,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:26:35,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:26:35,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:26:35,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:26:35,050 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-11-28 20:26:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:26:35,107 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-28 20:26:35,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:26:35,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 20:26:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:26:35,120 INFO L225 Difference]: With dead ends: 28 [2019-11-28 20:26:35,121 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 20:26:35,124 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:26:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 20:26:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-28 20:26:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 20:26:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-28 20:26:35,173 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2019-11-28 20:26:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:26:35,174 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-28 20:26:35,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:26:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-28 20:26:35,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:26:35,176 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:26:35,176 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:26:35,176 INFO L410 AbstractCegarLoop]: === Iteration 2 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:26:35,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:26:35,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1377538544, now seen corresponding path program 1 times [2019-11-28 20:26:35,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:26:35,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101854242] [2019-11-28 20:26:35,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:26:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 20:26:35,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101854242] [2019-11-28 20:26:35,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:26:35,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:26:35,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477602139] [2019-11-28 20:26:35,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:26:35,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:26:35,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:26:35,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:26:35,299 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-11-28 20:26:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:26:35,315 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-11-28 20:26:35,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:26:35,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-28 20:26:35,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:26:35,317 INFO L225 Difference]: With dead ends: 17 [2019-11-28 20:26:35,317 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 20:26:35,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 20:26:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 20:26:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-28 20:26:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 20:26:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-28 20:26:35,324 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 15 [2019-11-28 20:26:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:26:35,324 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-28 20:26:35,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:26:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-28 20:26:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 20:26:35,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:26:35,326 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:26:35,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:26:35,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:26:35,327 INFO L82 PathProgramCache]: Analyzing trace with hash 876403791, now seen corresponding path program 1 times [2019-11-28 20:26:35,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:26:35,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090540364] [2019-11-28 20:26:35,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:26:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:26:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-28 20:26:35,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090540364] [2019-11-28 20:26:35,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:26:35,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:26:35,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754896321] [2019-11-28 20:26:35,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:26:35,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:26:35,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:26:35,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:26:35,462 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-11-28 20:26:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:26:35,495 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-28 20:26:35,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:26:35,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-11-28 20:26:35,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:26:35,497 INFO L225 Difference]: With dead ends: 16 [2019-11-28 20:26:35,497 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:26:35,498 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:26:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:26:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:26:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:26:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:26:35,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-28 20:26:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:26:35,500 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:26:35,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:26:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:26:35,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:26:35,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 20:26:35,521 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 20:26:35,521 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 20:26:35,521 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 20:26:35,522 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 20:26:35,522 INFO L246 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-11-28 20:26:35,522 INFO L249 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2019-11-28 20:26:35,522 INFO L246 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-28 20:26:35,522 INFO L246 CegarLoopResult]: For program point L11(lines 11 17) no Hoare annotation was computed. [2019-11-28 20:26:35,522 INFO L246 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2019-11-28 20:26:35,523 INFO L246 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2019-11-28 20:26:35,523 INFO L249 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2019-11-28 20:26:35,523 INFO L246 CegarLoopResult]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-28 20:26:35,523 INFO L246 CegarLoopResult]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-28 20:26:35,523 INFO L246 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2019-11-28 20:26:35,524 INFO L249 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2019-11-28 20:26:35,524 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 20:26:35,524 INFO L246 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-28 20:26:35,524 INFO L246 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-11-28 20:26:35,524 INFO L246 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-28 20:26:35,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:26:35 BoogieIcfgContainer [2019-11-28 20:26:35,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:26:35,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:26:35,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:26:35,531 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:26:35,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:34" (3/4) ... [2019-11-28 20:26:35,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:26:35,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-11-28 20:26:35,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 20:26:35,548 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 20:26:35,592 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:26:35,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:26:35,595 INFO L168 Benchmark]: Toolchain (without parser) took 1499.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -83.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,595 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:26:35,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,598 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,599 INFO L168 Benchmark]: RCFGBuilder took 238.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,600 INFO L168 Benchmark]: TraceAbstraction took 803.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,600 INFO L168 Benchmark]: Witness Printer took 61.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:35,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 106.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 238.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 803.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * Witness Printer took 61.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 4 SDslu, 55 SDs, 0 SdLazy, 25 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 20/20 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...