./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab 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/NoriSharma-FSE2013-Fig8.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 00d107e65807c328c5ca82cfbd5c365270dccab4 .............................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-30f4e4a [2019-11-28 02:52:10,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:52:10,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:52:10,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:52:10,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:52:10,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:52:10,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:52:10,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:52:10,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:52:10,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:52:10,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:52:10,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:52:10,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:52:10,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:52:10,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:52:10,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:52:10,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:52:10,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:52:10,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:52:10,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:52:10,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:52:10,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:52:10,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:52:10,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:52:10,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:52:10,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:52:10,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:52:10,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:52:10,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:52:10,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:52:10,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:52:10,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:52:10,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:52:10,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:52:10,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:52:10,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:52:10,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:52:10,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:52:10,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:52:10,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:52:10,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:52:10,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:52:10,688 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:52:10,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:52:10,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:52:10,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:52:10,690 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:52:10,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:52:10,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:52:10,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:52:10,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:52:10,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:52:10,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:52:10,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:52:10,693 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:52:10,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:52:10,693 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:52:10,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:52:10,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:52:10,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:52:10,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:52:10,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:52:10,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:52:10,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:52:10,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:52:10,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:52:10,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:52:10,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:52:10,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:52:10,697 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 -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2019-11-28 02:52:11,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:52:11,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:52:11,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:52:11,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:52:11,030 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:52:11,031 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2019-11-28 02:52:11,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba4bc23d/7cb9d1f6ecc54bf3975cd2eb22edf442/FLAG252967ef7 [2019-11-28 02:52:11,498 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:52:11,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2019-11-28 02:52:11,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba4bc23d/7cb9d1f6ecc54bf3975cd2eb22edf442/FLAG252967ef7 [2019-11-28 02:52:11,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba4bc23d/7cb9d1f6ecc54bf3975cd2eb22edf442 [2019-11-28 02:52:11,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:52:11,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:52:11,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:11,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:52:11,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:52:11,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:11" (1/1) ... [2019-11-28 02:52:11,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f61f9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:11, skipping insertion in model container [2019-11-28 02:52:11,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:52:11" (1/1) ... [2019-11-28 02:52:11,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:52:11,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:52:12,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:12,128 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:52:12,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:52:12,161 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:52:12,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12 WrapperNode [2019-11-28 02:52:12,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:52:12,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:12,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:52:12,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:52:12,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:52:12,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:52:12,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:52:12,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:52:12,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... [2019-11-28 02:52:12,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:52:12,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:52:12,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:52:12,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:52:12,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:52:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:52:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:52:12,559 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:52:12,560 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:52:12,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:12 BoogieIcfgContainer [2019-11-28 02:52:12,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:52:12,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:52:12,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:52:12,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:52:12,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:52:11" (1/3) ... [2019-11-28 02:52:12,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca708a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:12, skipping insertion in model container [2019-11-28 02:52:12,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:52:12" (2/3) ... [2019-11-28 02:52:12,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca708a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:12, skipping insertion in model container [2019-11-28 02:52:12,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:12" (3/3) ... [2019-11-28 02:52:12,574 INFO L109 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8.c [2019-11-28 02:52:12,610 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:52:12,628 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-28 02:52:12,654 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-28 02:52:12,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:52:12,681 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:52:12,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:52:12,682 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:52:12,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:52:12,682 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:52:12,682 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:52:12,683 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:52:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-28 02:52:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 02:52:12,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:12,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 02:52:12,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:12,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:12,712 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-28 02:52:12,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:12,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054639328] [2019-11-28 02:52:12,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:52:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:52:12,871 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054639328] [2019-11-28 02:52:12,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:52:12,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:52:12,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655461147] [2019-11-28 02:52:12,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:52:12,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:52:12,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:52:12,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:52:12,900 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2019-11-28 02:52:12,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:52:12,962 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2019-11-28 02:52:12,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:52:12,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-28 02:52:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:52:12,983 INFO L225 Difference]: With dead ends: 35 [2019-11-28 02:52:12,984 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 02:52:12,997 INFO L630 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 [2019-11-28 02:52:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 02:52:13,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-11-28 02:52:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-28 02:52:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-28 02:52:13,051 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 3 [2019-11-28 02:52:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:52:13,051 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-28 02:52:13,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:52:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-28 02:52:13,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:52:13,053 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:13,053 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:52:13,055 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:13,057 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-28 02:52:13,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:13,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019749773] [2019-11-28 02:52:13,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:52:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:52:13,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019749773] [2019-11-28 02:52:13,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:52:13,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:52:13,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163627643] [2019-11-28 02:52:13,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:52:13,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:52:13,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:52:13,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:52:13,118 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2019-11-28 02:52:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:52:13,144 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-28 02:52:13,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:52:13,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:52:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:52:13,146 INFO L225 Difference]: With dead ends: 21 [2019-11-28 02:52:13,146 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 02:52:13,147 INFO L630 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 [2019-11-28 02:52:13,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 02:52:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 02:52:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 02:52:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-28 02:52:13,157 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2019-11-28 02:52:13,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:52:13,157 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-28 02:52:13,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:52:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-28 02:52:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 02:52:13,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:13,159 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 02:52:13,159 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2019-11-28 02:52:13,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:13,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656311473] [2019-11-28 02:52:13,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:52:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:52:13,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656311473] [2019-11-28 02:52:13,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:52:13,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:52:13,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944108367] [2019-11-28 02:52:13,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:52:13,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:52:13,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:52:13,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:52:13,219 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 3 states. [2019-11-28 02:52:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:52:13,239 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-28 02:52:13,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:52:13,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 02:52:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:52:13,241 INFO L225 Difference]: With dead ends: 20 [2019-11-28 02:52:13,241 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 02:52:13,241 INFO L630 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 [2019-11-28 02:52:13,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 02:52:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 02:52:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 02:52:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-28 02:52:13,246 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2019-11-28 02:52:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:52:13,246 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-28 02:52:13,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:52:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-28 02:52:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 02:52:13,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:52:13,247 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 02:52:13,248 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:52:13,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:52:13,248 INFO L82 PathProgramCache]: Analyzing trace with hash 925739853, now seen corresponding path program 1 times [2019-11-28 02:52:13,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:52:13,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411719004] [2019-11-28 02:52:13,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:52:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:52:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:52:13,290 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:52:13,290 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:52:13,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:52:13 BoogieIcfgContainer [2019-11-28 02:52:13,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:52:13,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:52:13,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:52:13,311 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:52:13,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:12" (3/4) ... [2019-11-28 02:52:13,313 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:52:13,357 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:52:13,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:52:13,359 INFO L168 Benchmark]: Toolchain (without parser) took 1437.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -87.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,360 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:52:13,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.41 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,362 INFO L168 Benchmark]: Boogie Preprocessor took 32.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,363 INFO L168 Benchmark]: RCFGBuilder took 274.88 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,364 INFO L168 Benchmark]: TraceAbstraction took 747.39 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,365 INFO L168 Benchmark]: Witness Printer took 46.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:52:13,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.41 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 91.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.88 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 747.39 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 [L23] COND TRUE x >= y [L24] EXPR c + 1 [L24] c = c + 1 [L25] COND FALSE !(z > 1) [L29] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 33 SDslu, 19 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...