./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.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 e153b2922c94b2bcf8f70f9e86faabd543aefaed ..................................................................................................................................................................................................................................................................................................................................................... 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 18:30:09,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:30:09,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:30:09,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:30:09,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:30:09,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:30:09,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:30:09,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:30:09,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:30:09,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:30:09,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:30:09,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:30:09,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:30:09,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:30:09,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:30:09,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:30:09,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:30:09,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:30:09,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:30:09,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:30:09,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:30:09,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:30:09,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:30:09,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:30:09,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:30:09,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:30:09,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:30:09,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:30:09,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:30:09,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:30:09,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:30:09,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:30:09,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:30:09,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:30:09,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:30:09,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:30:09,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:30:09,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:30:09,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:30:09,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:30:09,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:30:09,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:30:09,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:30:09,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:30:09,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:30:09,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:30:09,361 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:30:09,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:30:09,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:30:09,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:30:09,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:30:09,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:30:09,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:30:09,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:30:09,364 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:30:09,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:30:09,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:30:09,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:30:09,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:30:09,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:30:09,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:30:09,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:30:09,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:30:09,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:30:09,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:30:09,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:30:09,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:30:09,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:30:09,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:30:09,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:30:09,369 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 -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2020-10-19 18:30:09,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:30:09,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:30:09,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:30:09,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:30:09,778 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:30:09,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-10-19 18:30:09,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad9592d4/9e6367975bdc428980713ab149cbed49/FLAG0db2b741c [2020-10-19 18:30:10,269 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:30:10,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-10-19 18:30:10,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad9592d4/9e6367975bdc428980713ab149cbed49/FLAG0db2b741c [2020-10-19 18:30:10,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad9592d4/9e6367975bdc428980713ab149cbed49 [2020-10-19 18:30:10,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:30:10,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:30:10,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:30:10,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:30:10,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:30:10,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46086f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10, skipping insertion in model container [2020-10-19 18:30:10,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:30:10,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:30:10,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:30:10,867 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:30:10,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:30:10,891 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:30:10,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10 WrapperNode [2020-10-19 18:30:10,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:30:10,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:30:10,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:30:10,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:30:10,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:30:10,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:30:10,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:30:10,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:30:10,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:10,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:11,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:11,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (1/1) ... [2020-10-19 18:30:11,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:30:11,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:30:11,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:30:11,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:30:11,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (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 18:30:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:30:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:30:11,256 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:30:11,257 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:30:11,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:30:11 BoogieIcfgContainer [2020-10-19 18:30:11,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:30:11,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:30:11,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:30:11,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:30:11,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:30:10" (1/3) ... [2020-10-19 18:30:11,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3740e531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:30:11, skipping insertion in model container [2020-10-19 18:30:11,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:30:10" (2/3) ... [2020-10-19 18:30:11,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3740e531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:30:11, skipping insertion in model container [2020-10-19 18:30:11,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:30:11" (3/3) ... [2020-10-19 18:30:11,267 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-10-19 18:30:11,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:30:11,285 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-19 18:30:11,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-19 18:30:11,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:30:11,323 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:30:11,323 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:30:11,323 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:30:11,324 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:30:11,324 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:30:11,324 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:30:11,324 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:30:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-19 18:30:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:30:11,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:30:11,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:30:11,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:30:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:30:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-19 18:30:11,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:30:11,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431752539] [2020-10-19 18:30:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:30:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:30:11,507 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 18:30:11,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431752539] [2020-10-19 18:30:11,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:30:11,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:30:11,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50911079] [2020-10-19 18:30:11,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:30:11,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:30:11,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:30:11,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:30:11,538 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-10-19 18:30:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:30:11,643 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2020-10-19 18:30:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:30:11,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-19 18:30:11,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:30:11,664 INFO L225 Difference]: With dead ends: 27 [2020-10-19 18:30:11,665 INFO L226 Difference]: Without dead ends: 17 [2020-10-19 18:30:11,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:30:11,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-19 18:30:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-10-19 18:30:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:30:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-10-19 18:30:11,703 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-10-19 18:30:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:30:11,703 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-10-19 18:30:11,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:30:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-10-19 18:30:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:30:11,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:30:11,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:30:11,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:30:11,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:30:11,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:30:11,707 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-19 18:30:11,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:30:11,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629942329] [2020-10-19 18:30:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:30:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:30:11,728 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 18:30:11,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629942329] [2020-10-19 18:30:11,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:30:11,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:30:11,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729315868] [2020-10-19 18:30:11,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:30:11,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:30:11,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:30:11,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:30:11,734 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-10-19 18:30:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:30:11,762 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-19 18:30:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:30:11,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:30:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:30:11,763 INFO L225 Difference]: With dead ends: 15 [2020-10-19 18:30:11,763 INFO L226 Difference]: Without dead ends: 13 [2020-10-19 18:30:11,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:30:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-19 18:30:11,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 18:30:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:30:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-10-19 18:30:11,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2020-10-19 18:30:11,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:30:11,770 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:30:11,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:30:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-10-19 18:30:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:30:11,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:30:11,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-10-19 18:30:11,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:30:11,772 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:30:11,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:30:11,773 INFO L82 PathProgramCache]: Analyzing trace with hash 784501312, now seen corresponding path program 1 times [2020-10-19 18:30:11,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:30:11,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814791097] [2020-10-19 18:30:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:30:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:30:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:30:11,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814791097] [2020-10-19 18:30:11,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:30:11,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:30:11,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571543515] [2020-10-19 18:30:11,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:30:11,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:30:11,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:30:11,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:30:11,803 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-10-19 18:30:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:30:11,828 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-10-19 18:30:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:30:11,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-19 18:30:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:30:11,830 INFO L225 Difference]: With dead ends: 13 [2020-10-19 18:30:11,830 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:30:11,831 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 18:30:11,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:30:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:30:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:30:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:30:11,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-10-19 18:30:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:30:11,832 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:30:11,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:30:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:30:11,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:30:11,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:30:11,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:30:11,854 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2020-10-19 18:30:11,854 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:30:11,854 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-10-19 18:30:11,854 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-19 18:30:11,854 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-10-19 18:30:11,855 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-19 18:30:11,855 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-19 18:30:11,855 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 19) no Hoare annotation was computed. [2020-10-19 18:30:11,855 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2020-10-19 18:30:11,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-10-19 18:30:11,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:30:11,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:30:11,856 INFO L277 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: true [2020-10-19 18:30:11,856 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-10-19 18:30:11,856 INFO L270 CegarLoopResult]: At program point L14-2(lines 13 19) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~x~0) [2020-10-19 18:30:11,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:30:11 BoogieIcfgContainer [2020-10-19 18:30:11,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:30:11,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:30:11,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:30:11,875 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:30:11,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:30:11" (3/4) ... [2020-10-19 18:30:11,879 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:30:11,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:30:11,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:30:11,932 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:30:11,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:30:11,935 INFO L168 Benchmark]: Toolchain (without parser) took 1264.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 961.3 MB in the beginning and 1.0 GB in the end (delta: -54.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:30:11,936 INFO L168 Benchmark]: CDTParser took 0.41 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 18:30:11,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.03 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 949.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:30:11,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:30:11,938 INFO L168 Benchmark]: Boogie Preprocessor took 85.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -123.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:30:11,939 INFO L168 Benchmark]: RCFGBuilder took 252.44 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:30:11,940 INFO L168 Benchmark]: TraceAbstraction took 614.74 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: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:30:11,940 INFO L168 Benchmark]: Witness Printer took 57.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:30:11,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 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 216.03 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 949.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -123.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 252.44 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 614.74 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: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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...