./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Bangalore_v4.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 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:29:00,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:29:00,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:29:00,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:29:00,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:29:00,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:29:00,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:29:00,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:29:00,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:29:00,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:29:00,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:29:00,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:29:00,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:29:00,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:29:00,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:29:00,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:29:00,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:29:00,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:29:00,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:29:00,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:29:00,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:29:00,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:29:00,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:29:00,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:29:00,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:29:00,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:29:00,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:29:00,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:29:00,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:29:00,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:29:00,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:29:00,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:29:00,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:29:00,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:29:00,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:29:00,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:29:00,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:29:00,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:29:00,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:29:00,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:29:00,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:29:00,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:29:00,951 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:29:00,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:29:00,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:29:00,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:29:00,957 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:29:00,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:29:00,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:29:00,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:29:00,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:29:00,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:29:00,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:29:00,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:29:00,959 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:29:00,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:29:00,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:29:00,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:29:00,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:29:00,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:29:00,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:29:00,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:29:00,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:29:00,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:29:00,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:29:00,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:29:00,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:29:00,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:29:00,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:29:00,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:29:00,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 [2020-10-19 18:29:01,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:29:01,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:29:01,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:29:01,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:29:01,380 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:29:01,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-10-19 18:29:01,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143dc15c/115051fe6ae143d493dabeee99520bcb/FLAG6cf42c350 [2020-10-19 18:29:01,887 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:29:01,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-10-19 18:29:01,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143dc15c/115051fe6ae143d493dabeee99520bcb/FLAG6cf42c350 [2020-10-19 18:29:02,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c143dc15c/115051fe6ae143d493dabeee99520bcb [2020-10-19 18:29:02,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:29:02,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:29:02,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:02,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:29:02,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:29:02,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85c8426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02, skipping insertion in model container [2020-10-19 18:29:02,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:29:02,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:29:02,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:02,499 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:29:02,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:02,524 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:29:02,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02 WrapperNode [2020-10-19 18:29:02,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:02,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:02,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:29:02,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:29:02,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:02,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:29:02,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:29:02,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:29:02,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... [2020-10-19 18:29:02,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:29:02,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:29:02,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:29:02,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:29:02,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:29:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:29:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:29:02,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:29:02,848 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:29:02,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:02 BoogieIcfgContainer [2020-10-19 18:29:02,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:29:02,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:29:02,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:29:02,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:29:02,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:29:02" (1/3) ... [2020-10-19 18:29:02,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79207d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:02, skipping insertion in model container [2020-10-19 18:29:02,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:02" (2/3) ... [2020-10-19 18:29:02,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79207d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:02, skipping insertion in model container [2020-10-19 18:29:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:02" (3/3) ... [2020-10-19 18:29:02,863 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore_v4.c [2020-10-19 18:29:02,875 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:29:02,883 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-19 18:29:02,896 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-19 18:29:02,915 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:29:02,915 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:29:02,916 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:29:02,916 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:29:02,916 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:29:02,916 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:29:02,916 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:29:02,917 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:29:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-19 18:29:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:29:02,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:02,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:29:02,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:02,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:02,943 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2020-10-19 18:29:02,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:02,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746509271] [2020-10-19 18:29:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:03,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746509271] [2020-10-19 18:29:03,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:03,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:29:03,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745358881] [2020-10-19 18:29:03,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:29:03,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:03,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:29:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:29:03,130 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-10-19 18:29:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:03,196 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-10-19 18:29:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:29:03,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-19 18:29:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:03,214 INFO L225 Difference]: With dead ends: 23 [2020-10-19 18:29:03,214 INFO L226 Difference]: Without dead ends: 10 [2020-10-19 18:29:03,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:29:03,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-19 18:29:03,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-10-19 18:29:03,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-19 18:29:03,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-19 18:29:03,267 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2020-10-19 18:29:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:03,268 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-19 18:29:03,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:29:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-19 18:29:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:29:03,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:03,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:29:03,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:29:03,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2020-10-19 18:29:03,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:03,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986268537] [2020-10-19 18:29:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:03,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986268537] [2020-10-19 18:29:03,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:03,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:29:03,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76279898] [2020-10-19 18:29:03,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:29:03,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:03,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:29:03,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:29:03,394 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-10-19 18:29:03,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:03,445 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-10-19 18:29:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:29:03,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-19 18:29:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:03,447 INFO L225 Difference]: With dead ends: 9 [2020-10-19 18:29:03,448 INFO L226 Difference]: Without dead ends: 8 [2020-10-19 18:29:03,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:29:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-19 18:29:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-19 18:29:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-19 18:29:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-10-19 18:29:03,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-10-19 18:29:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:03,455 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-10-19 18:29:03,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:29:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-10-19 18:29:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:29:03,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:03,457 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-19 18:29:03,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:29:03,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:03,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2020-10-19 18:29:03,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:03,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876596262] [2020-10-19 18:29:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:03,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876596262] [2020-10-19 18:29:03,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314638457] [2020-10-19 18:29:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:29:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:03,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:29:03,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:29:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:03,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:29:03,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 18:29:03,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141383816] [2020-10-19 18:29:03,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:29:03,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:03,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:29:03,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:29:03,650 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2020-10-19 18:29:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:03,689 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-10-19 18:29:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:29:03,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-10-19 18:29:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:03,690 INFO L225 Difference]: With dead ends: 10 [2020-10-19 18:29:03,690 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:29:03,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:29:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:29:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:29:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:29:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:29:03,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-10-19 18:29:03,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:03,692 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:29:03,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:29:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:29:03,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:29:03,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 18:29:03,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:29:03,938 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-10-19 18:29:03,938 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:29:03,938 INFO L277 CegarLoopResult]: At program point L21(lines 10 22) the Hoare annotation is: true [2020-10-19 18:29:03,938 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~x~0 1) ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-10-19 18:29:03,939 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-10-19 18:29:03,939 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:29:03,939 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:29:03,939 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-19 18:29:03,939 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-19 18:29:03,940 INFO L274 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-10-19 18:29:03,940 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-10-19 18:29:03,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:29:03 BoogieIcfgContainer [2020-10-19 18:29:03,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:29:03,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:29:03,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:29:03,959 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:29:03,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:02" (3/4) ... [2020-10-19 18:29:03,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:29:03,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:29:03,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:29:04,021 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:29:04,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:29:04,024 INFO L168 Benchmark]: Toolchain (without parser) took 1732.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 960.0 MB in the beginning and 1.0 GB in the end (delta: -72.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:04,025 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:04,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:04,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:04,027 INFO L168 Benchmark]: Boogie Preprocessor took 24.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:04,028 INFO L168 Benchmark]: RCFGBuilder took 215.20 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:04,029 INFO L168 Benchmark]: TraceAbstraction took 1104.86 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:04,030 INFO L168 Benchmark]: Witness Printer took 63.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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. [2020-10-19 18:29:04,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 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 84.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 215.20 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1104.86 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: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. * Witness Printer took 63.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 17]: Loop Invariant Derived loop invariant: x + 1 <= y && y <= 2147483647 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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...