./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.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/ColonSipma-TACAS2001-Fig1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 263033368f66896d5c79f69cd87eb218f4523caf .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:25:00,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:25:00,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:25:00,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:25:00,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:25:00,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:25:00,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:25:00,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:25:00,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:25:00,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:25:00,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:25:00,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:25:00,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:25:00,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:25:00,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:25:00,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:25:00,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:25:00,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:25:00,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:25:00,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:25:00,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:25:00,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:25:00,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:25:00,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:25:00,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:25:00,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:25:00,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:25:00,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:25:00,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:25:00,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:25:00,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:25:00,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:25:00,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:25:00,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:25:00,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:25:00,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:25:00,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:25:00,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:25:00,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:25:00,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:25:00,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:25:00,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:25:00,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:25:00,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:25:00,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:25:00,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:25:00,486 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:25:00,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:25:00,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:25:00,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:25:00,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:25:00,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:25:00,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:25:00,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:25:00,488 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:25:00,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:25:00,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:25:00,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:25:00,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:25:00,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:25:00,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:25:00,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:25:00,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:25:00,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:25:00,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:25:00,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:25:00,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:25:00,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:25:00,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:25:00,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:25:00,491 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 -> 263033368f66896d5c79f69cd87eb218f4523caf [2020-10-20 06:25:00,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:25:00,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:25:00,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:25:00,711 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:25:00,711 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:25:00,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2020-10-20 06:25:00,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea64cc788/24232f33467f4c36b25bfe3f46f474bd/FLAG22ee1c56e [2020-10-20 06:25:01,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:25:01,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2020-10-20 06:25:01,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea64cc788/24232f33467f4c36b25bfe3f46f474bd/FLAG22ee1c56e [2020-10-20 06:25:01,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea64cc788/24232f33467f4c36b25bfe3f46f474bd [2020-10-20 06:25:01,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:25:01,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:25:01,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:01,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:25:01,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:25:01,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:01,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1570e6d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01, skipping insertion in model container [2020-10-20 06:25:01,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:01,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:25:01,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:25:01,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:01,952 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:25:01,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:01,975 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:25:01,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01 WrapperNode [2020-10-20 06:25:01,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:01,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:01,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:25:01,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:25:01,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:01,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:02,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:25:02,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:25:02,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:25:02,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (1/1) ... [2020-10-20 06:25:02,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:25:02,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:25:02,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:25:02,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:25:02,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (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 [2020-10-20 06:25:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:25:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:25:02,252 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:25:02,259 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:25:02,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:02 BoogieIcfgContainer [2020-10-20 06:25:02,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:25:02,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:25:02,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:25:02,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:25:02,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:25:01" (1/3) ... [2020-10-20 06:25:02,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796c25f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:02, skipping insertion in model container [2020-10-20 06:25:02,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:01" (2/3) ... [2020-10-20 06:25:02,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796c25f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:02, skipping insertion in model container [2020-10-20 06:25:02,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:02" (3/3) ... [2020-10-20 06:25:02,270 INFO L111 eAbstractionObserver]: Analyzing ICFG ColonSipma-TACAS2001-Fig1.c [2020-10-20 06:25:02,282 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:25:02,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 06:25:02,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 06:25:02,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:25:02,322 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:25:02,322 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:25:02,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:25:02,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:25:02,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:25:02,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:25:02,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:25:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-20 06:25:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 06:25:02,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:02,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 06:25:02,341 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:02,345 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-20 06:25:02,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:02,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813648468] [2020-10-20 06:25:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:25:02,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813648468] [2020-10-20 06:25:02,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:02,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:25:02,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516841077] [2020-10-20 06:25:02,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:25:02,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:02,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:25:02,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:25:02,513 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-10-20 06:25:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:02,562 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-10-20 06:25:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:25:02,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-20 06:25:02,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:02,585 INFO L225 Difference]: With dead ends: 23 [2020-10-20 06:25:02,585 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 06:25:02,589 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 [2020-10-20 06:25:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 06:25:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-10-20 06:25:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 06:25:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-20 06:25:02,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2020-10-20 06:25:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:02,626 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-20 06:25:02,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:25:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-20 06:25:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:25:02,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:02,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:25:02,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:25:02,629 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:02,629 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-10-20 06:25:02,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:02,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049998830] [2020-10-20 06:25:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:25:02,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049998830] [2020-10-20 06:25:02,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:02,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:25:02,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629501569] [2020-10-20 06:25:02,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:25:02,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:25:02,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:02,730 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-10-20 06:25:02,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:02,776 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-20 06:25:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:25:02,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-20 06:25:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:02,779 INFO L225 Difference]: With dead ends: 18 [2020-10-20 06:25:02,779 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 06:25:02,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 06:25:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-10-20 06:25:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:25:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-20 06:25:02,790 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 4 [2020-10-20 06:25:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:02,790 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-20 06:25:02,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:25:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-20 06:25:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:25:02,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:02,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:25:02,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:25:02,792 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:02,792 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-10-20 06:25:02,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:02,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492552309] [2020-10-20 06:25:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:25:02,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492552309] [2020-10-20 06:25:02,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:02,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:25:02,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547649002] [2020-10-20 06:25:02,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:25:02,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:02,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:25:02,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:25:02,857 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-10-20 06:25:02,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:02,867 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-20 06:25:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:25:02,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:25:02,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:02,869 INFO L225 Difference]: With dead ends: 12 [2020-10-20 06:25:02,869 INFO L226 Difference]: Without dead ends: 11 [2020-10-20 06:25:02,869 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 [2020-10-20 06:25:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-20 06:25:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-20 06:25:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 06:25:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-10-20 06:25:02,873 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2020-10-20 06:25:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:02,873 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-10-20 06:25:02,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:25:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-10-20 06:25:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 06:25:02,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:02,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:25:02,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:25:02,875 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:02,875 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-10-20 06:25:02,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:02,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312898282] [2020-10-20 06:25:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:02,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:02,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:02,924 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:25:02,932 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:25:02,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:25:02,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:25:02 BoogieIcfgContainer [2020-10-20 06:25:02,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:25:02,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:25:02,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:25:02,963 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:25:02,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:02" (3/4) ... [2020-10-20 06:25:02,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:25:03,005 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:25:03,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:25:03,008 INFO L168 Benchmark]: Toolchain (without parser) took 1380.02 ms. Allocated memory was 34.6 MB in the beginning and 47.7 MB in the end (delta: 13.1 MB). Free memory was 6.8 MB in the beginning and 28.1 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:25:03,009 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 34.6 MB. Free memory was 12.2 MB in the beginning and 12.1 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.98 ms. Allocated memory was 37.2 MB in the beginning and 44.0 MB in the end (delta: 6.8 MB). Free memory was 19.6 MB in the beginning and 27.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 44.0 MB. Free memory was 27.2 MB in the beginning and 25.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,011 INFO L168 Benchmark]: Boogie Preprocessor took 19.52 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 24.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,012 INFO L168 Benchmark]: RCFGBuilder took 238.81 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 24.6 MB in the beginning and 27.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,013 INFO L168 Benchmark]: TraceAbstraction took 699.29 ms. Allocated memory was 46.1 MB in the beginning and 47.7 MB in the end (delta: 1.6 MB). Free memory was 27.4 MB in the beginning and 30.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,014 INFO L168 Benchmark]: Witness Printer took 42.57 ms. Allocated memory is still 47.7 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:03,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 34.6 MB. Free memory was 12.2 MB in the beginning and 12.1 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 333.98 ms. Allocated memory was 37.2 MB in the beginning and 44.0 MB in the end (delta: 6.8 MB). Free memory was 19.6 MB in the beginning and 27.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 44.0 MB. Free memory was 27.2 MB in the beginning and 25.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.52 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 24.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 238.81 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 24.6 MB in the beginning and 27.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 699.29 ms. Allocated memory was 46.1 MB in the beginning and 47.7 MB in the end (delta: 1.6 MB). Free memory was 27.4 MB in the beginning and 30.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. * Witness Printer took 42.57 ms. Allocated memory is still 47.7 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int k, i, j, tmp; [L16] k = __VERIFIER_nondet_int() [L17] i = __VERIFIER_nondet_int() [L18] j = __VERIFIER_nondet_int() [L19] COND TRUE i <= 100 && j <= k [L20] tmp = i [L21] i = j [L22] EXPR tmp + 1 [L22] j = tmp + 1 [L23] k - 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...