./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer --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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:52:21,575 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:52:21,577 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:52:21,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:52:21,583 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:52:21,584 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:52:21,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:52:21,586 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:52:21,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:52:21,588 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:52:21,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:52:21,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:52:21,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:52:21,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:52:21,590 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:52:21,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:52:21,591 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:52:21,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:52:21,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:52:21,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:52:21,595 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:52:21,596 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:52:21,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:52:21,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:52:21,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:52:21,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:52:21,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:52:21,599 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:52:21,599 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:52:21,600 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:52:21,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:52:21,600 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:52:21,600 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:52:21,600 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:52:21,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:52:21,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:52:21,601 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:52:21,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:52:21,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:52:21,612 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:52:21,612 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:52:21,612 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:52:21,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:52:21,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:52:21,614 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:52:21,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:52:21,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:52:21,615 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:52:21,615 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:52:21,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:52:21,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:52:21,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:52:21,616 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:52:21,616 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:52:21,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:52:21,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:52:21,616 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer 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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-11-28 12:52:21,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:52:21,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:52:21,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:52:21,654 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:52:21,654 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:52:21,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 12:52:21,698 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/data/adde753d5/4b759d4576504d248e39007a9304f30e/FLAG7b019ed36 [2018-11-28 12:52:22,114 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:52:22,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 12:52:22,119 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/data/adde753d5/4b759d4576504d248e39007a9304f30e/FLAG7b019ed36 [2018-11-28 12:52:22,131 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/data/adde753d5/4b759d4576504d248e39007a9304f30e [2018-11-28 12:52:22,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:52:22,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:52:22,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:52:22,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:52:22,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:52:22,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e991360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22, skipping insertion in model container [2018-11-28 12:52:22,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:52:22,158 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:52:22,268 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:52:22,270 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:52:22,278 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:52:22,286 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:52:22,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22 WrapperNode [2018-11-28 12:52:22,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:52:22,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:52:22,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:52:22,287 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:52:22,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:52:22,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:52:22,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:52:22,299 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:52:22,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... [2018-11-28 12:52:22,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:52:22,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:52:22,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:52:22,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:52:22,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/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 [2018-11-28 12:52:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:52:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:52:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:52:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:52:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:52:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:52:22,483 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:52:22,483 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:52:22,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:22 BoogieIcfgContainer [2018-11-28 12:52:22,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:52:22,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:52:22,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:52:22,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:52:22,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:52:22" (1/3) ... [2018-11-28 12:52:22,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ef9e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:52:22, skipping insertion in model container [2018-11-28 12:52:22,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:22" (2/3) ... [2018-11-28 12:52:22,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ef9e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:52:22, skipping insertion in model container [2018-11-28 12:52:22,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:22" (3/3) ... [2018-11-28 12:52:22,490 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-11-28 12:52:22,496 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:52:22,501 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 12:52:22,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 12:52:22,540 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:52:22,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:52:22,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:52:22,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:52:22,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:52:22,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:52:22,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:52:22,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:52:22,541 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:52:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 12:52:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 12:52:22,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:52:22,560 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:52:22,562 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:52:22,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:22,567 INFO L82 PathProgramCache]: Analyzing trace with hash -379318865, now seen corresponding path program 1 times [2018-11-28 12:52:22,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:22,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:22,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:22,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:52:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:52:22,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:52:22,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:52:22,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:52:22,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:52:22,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:52:22,736 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 12:52:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:52:22,793 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-11-28 12:52:22,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:52:22,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 12:52:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:52:22,800 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:52:22,800 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 12:52:22,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:52:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 12:52:22,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-28 12:52:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 12:52:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-28 12:52:22,825 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2018-11-28 12:52:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:52:22,825 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-28 12:52:22,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:52:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-28 12:52:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:52:22,826 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:52:22,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:52:22,826 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:52:22,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:22,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1126017128, now seen corresponding path program 1 times [2018-11-28 12:52:22,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:22,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:22,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:22,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:52:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:52:22,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:52:22,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:52:22,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:52:22,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:52:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:52:22,855 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-11-28 12:52:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:52:22,875 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-11-28 12:52:22,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:52:22,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:52:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:52:22,876 INFO L225 Difference]: With dead ends: 15 [2018-11-28 12:52:22,876 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 12:52:22,877 INFO L631 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 [2018-11-28 12:52:22,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 12:52:22,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 12:52:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 12:52:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-11-28 12:52:22,879 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2018-11-28 12:52:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:52:22,879 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-28 12:52:22,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:52:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-28 12:52:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:52:22,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:52:22,880 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:52:22,880 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:52:22,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:22,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1481724328, now seen corresponding path program 1 times [2018-11-28 12:52:22,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:22,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:22,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:22,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:52:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:52:22,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:52:22,972 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:52:22,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:52:23,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:52:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:52:23,068 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:52:23,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-11-28 12:52:23,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:52:23,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:52:23,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:52:23,069 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 7 states. [2018-11-28 12:52:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:52:23,107 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2018-11-28 12:52:23,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:52:23,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 12:52:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:52:23,108 INFO L225 Difference]: With dead ends: 16 [2018-11-28 12:52:23,108 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:52:23,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:52:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:52:23,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:52:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:52:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:52:23,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-28 12:52:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:52:23,111 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:52:23,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:52:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:52:23,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:52:23,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:52:23,150 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:52:23,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:52:23,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:52:23,151 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2018-11-28 12:52:23,151 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= 0 (+ main_~x~0 2147483648)) (<= main_~M~0 2147483647)) [2018-11-28 12:52:23,151 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-28 12:52:23,152 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-28 12:52:23,152 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-28 12:52:23,152 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 12:52:23,152 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 12:52:23,152 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-28 12:52:23,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:52:23 BoogieIcfgContainer [2018-11-28 12:52:23,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:52:23,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:52:23,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:52:23,161 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:52:23,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:22" (3/4) ... [2018-11-28 12:52:23,164 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:52:23,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:52:23,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:52:23,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:52:23,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:52:23,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:52:23,202 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_335ada02-4424-4b24-bed2-7c7e621d6b28/bin-2019/uautomizer/witness.graphml [2018-11-28 12:52:23,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:52:23,203 INFO L168 Benchmark]: Toolchain (without parser) took 1069.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -101.8 MB). Peak memory consumption was 45.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:23,204 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:52:23,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:23,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:52:23,205 INFO L168 Benchmark]: Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:52:23,205 INFO L168 Benchmark]: RCFGBuilder took 169.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:23,205 INFO L168 Benchmark]: TraceAbstraction took 676.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:23,205 INFO L168 Benchmark]: Witness Printer took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:52:23,207 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 676.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 75.7 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && M <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 33 SDslu, 27 SDs, 0 SdLazy, 46 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1421 SizeOfPredicates, 1 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...