./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Cairo.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/Cairo.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 4ee0473dc6d7092e83742edafdde9370f3b93e25 ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:02:13,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:13,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:13,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:13,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:13,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:13,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:13,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:13,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:14,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:14,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:14,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:14,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:14,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:14,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:14,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:14,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:14,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:14,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:14,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:14,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:14,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:14,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:14,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:14,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:14,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:14,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:14,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:14,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:14,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:14,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:14,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:14,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:14,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:14,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:14,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:14,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:14,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:14,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:14,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:14,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:14,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:14,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:14,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:14,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:14,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:14,130 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:14,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:14,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:14,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:14,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:14,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:14,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:14,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:14,133 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:14,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:14,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:14,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:14,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:14,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:14,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:14,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:14,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:14,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:14,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:14,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:14,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:14,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:14,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:14,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:14,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee0473dc6d7092e83742edafdde9370f3b93e25 [2020-10-26 04:02:14,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:14,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:14,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:14,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:14,674 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:14,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo.c [2020-10-26 04:02:14,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/169c750f4/f877f0a3402c45f6bda37e2cf167de54/FLAG068e0cbce [2020-10-26 04:02:15,406 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:15,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo.c [2020-10-26 04:02:15,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/169c750f4/f877f0a3402c45f6bda37e2cf167de54/FLAG068e0cbce [2020-10-26 04:02:15,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/169c750f4/f877f0a3402c45f6bda37e2cf167de54 [2020-10-26 04:02:15,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:15,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:15,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:15,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:15,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:15,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:15" (1/1) ... [2020-10-26 04:02:15,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be4ec6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:15, skipping insertion in model container [2020-10-26 04:02:15,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:15" (1/1) ... [2020-10-26 04:02:15,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:15,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:16,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:16,016 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:16,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:16,048 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:16,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16 WrapperNode [2020-10-26 04:02:16,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:16,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:16,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:16,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:16,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:16,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:16,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:16,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:16,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... [2020-10-26 04:02:16,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:16,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:16,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:16,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:16,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:16,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:16,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:16,410 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:16,411 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:16,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:16 BoogieIcfgContainer [2020-10-26 04:02:16,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:16,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:16,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:16,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:16,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:15" (1/3) ... [2020-10-26 04:02:16,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c03c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:16, skipping insertion in model container [2020-10-26 04:02:16,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:16" (2/3) ... [2020-10-26 04:02:16,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7c03c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:16, skipping insertion in model container [2020-10-26 04:02:16,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:16" (3/3) ... [2020-10-26 04:02:16,423 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo.c [2020-10-26 04:02:16,436 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:16,441 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-26 04:02:16,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-26 04:02:16,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:16,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:16,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:16,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:16,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:16,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:16,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:16,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-26 04:02:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:02:16,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:16,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:02:16,511 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:16,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:16,518 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2020-10-26 04:02:16,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:16,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767001211] [2020-10-26 04:02:16,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:16,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:16,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767001211] [2020-10-26 04:02:16,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:16,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:16,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866177298] [2020-10-26 04:02:16,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:16,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:16,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:16,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:16,730 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-10-26 04:02:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:16,780 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-10-26 04:02:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:16,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:02:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:16,792 INFO L225 Difference]: With dead ends: 15 [2020-10-26 04:02:16,792 INFO L226 Difference]: Without dead ends: 6 [2020-10-26 04:02:16,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-10-26 04:02:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-10-26 04:02:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:02:16,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-10-26 04:02:16,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2020-10-26 04:02:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:16,836 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-10-26 04:02:16,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-10-26 04:02:16,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:02:16,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:16,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:02:16,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:16,838 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:16,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:16,840 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2020-10-26 04:02:16,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:16,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116020382] [2020-10-26 04:02:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:16,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116020382] [2020-10-26 04:02:16,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:16,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:02:16,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640050213] [2020-10-26 04:02:16,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:16,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:16,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:16,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:16,869 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2020-10-26 04:02:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:16,890 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-10-26 04:02:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:16,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:02:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:16,892 INFO L225 Difference]: With dead ends: 10 [2020-10-26 04:02:16,892 INFO L226 Difference]: Without dead ends: 9 [2020-10-26 04:02:16,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:16,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-26 04:02:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-26 04:02:16,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-26 04:02:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-26 04:02:16,897 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2020-10-26 04:02:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:16,898 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-26 04:02:16,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-26 04:02:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 04:02:16,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:16,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-10-26 04:02:16,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:02:16,900 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2020-10-26 04:02:16,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:16,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753613632] [2020-10-26 04:02:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:16,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753613632] [2020-10-26 04:02:16,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274421885] [2020-10-26 04:02:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:02:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:16,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 04:02:17,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:02:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:17,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:02:17,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-26 04:02:17,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616313194] [2020-10-26 04:02:17,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:02:17,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:17,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:02:17,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:02:17,066 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-10-26 04:02:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:17,087 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-10-26 04:02:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:02:17,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-26 04:02:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:17,088 INFO L225 Difference]: With dead ends: 9 [2020-10-26 04:02:17,088 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:02:17,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:02:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:02:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:02:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:02:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:02:17,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-10-26 04:02:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:17,090 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:02:17,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:02:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:02:17,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:02:17,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-26 04:02:17,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:02:17,336 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-26 04:02:17,336 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:02:17,337 INFO L270 CegarLoopResult]: At program point L25(lines 16 26) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-10-26 04:02:17,337 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 ULTIMATE.start_main_~x~0)) [2020-10-26 04:02:17,337 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-26 04:02:17,337 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:02:17,338 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:02:17,338 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-26 04:02:17,338 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-26 04:02:17,338 INFO L274 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-10-26 04:02:17,338 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2020-10-26 04:02:17,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:17 BoogieIcfgContainer [2020-10-26 04:02:17,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:17,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:17,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:17,354 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:17,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:16" (3/4) ... [2020-10-26 04:02:17,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:02:17,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:02:17,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:02:17,409 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:17,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:17,412 INFO L168 Benchmark]: Toolchain (without parser) took 1606.55 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 33.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,413 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 27.7 MB in the beginning and 27.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:17,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.53 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 26.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.40 ms. Allocated memory is still 58.7 MB. Free memory was 26.5 MB in the beginning and 42.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,415 INFO L168 Benchmark]: Boogie Preprocessor took 20.38 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:17,416 INFO L168 Benchmark]: RCFGBuilder took 258.50 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 34.0 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,417 INFO L168 Benchmark]: TraceAbstraction took 938.07 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 35.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,417 INFO L168 Benchmark]: Witness Printer took 56.40 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 33.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:17,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 27.7 MB in the beginning and 27.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 221.53 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 26.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.40 ms. Allocated memory is still 58.7 MB. Free memory was 26.5 MB in the beginning and 42.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.38 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 258.50 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 34.0 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 938.07 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 35.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. * Witness Printer took 56.40 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 33.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...