./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a482892abf67e79a3ae4664db384c404b0bcc555 ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:15:58,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:58,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:58,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:58,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:58,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:58,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:58,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:58,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:58,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:58,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:58,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:58,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:58,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:58,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:58,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:58,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:58,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:58,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:58,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:58,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:58,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:58,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:58,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:58,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:58,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:58,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:58,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:58,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:58,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:58,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:58,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:58,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:58,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:58,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:58,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:58,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:58,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:58,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:58,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:58,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:58,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-10-22 10:15:58,577 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:58,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:58,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:58,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:58,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:58,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:58,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:58,579 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:58,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:15:58,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:58,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:58,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:58,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:58,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:58,581 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:58,581 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:58,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:58,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:58,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:58,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:58,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:58,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:58,582 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:58,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:58,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:58,583 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak 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 -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a482892abf67e79a3ae4664db384c404b0bcc555 [2019-10-22 10:15:58,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:58,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:58,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:58,621 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:58,622 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:58,622 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2019-10-22 10:15:58,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/data/bb591c5a4/6a60052aaf47403da92a0a309e0a8215/FLAG636e01ad3 [2019-10-22 10:15:59,072 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:59,073 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2019-10-22 10:15:59,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/data/bb591c5a4/6a60052aaf47403da92a0a309e0a8215/FLAG636e01ad3 [2019-10-22 10:15:59,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/data/bb591c5a4/6a60052aaf47403da92a0a309e0a8215 [2019-10-22 10:15:59,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:59,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:59,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:59,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:59,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:59,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102b923e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59, skipping insertion in model container [2019-10-22 10:15:59,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,110 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:59,150 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:59,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:59,454 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:59,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:59,556 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:59,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59 WrapperNode [2019-10-22 10:15:59,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:59,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:59,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:59,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:59,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:59,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:59,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:59,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:59,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... [2019-10-22 10:15:59,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:59,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:59,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:59,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:59,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-10-22 10:15:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:59,830 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 10:16:00,212 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2019-10-22 10:16:00,212 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2019-10-22 10:16:00,487 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:00,487 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 10:16:00,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:00 BoogieIcfgContainer [2019-10-22 10:16:00,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:00,489 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:00,489 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:00,500 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:00,500 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:00" (1/1) ... [2019-10-22 10:16:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 86 states and 147 transitions. [2019-10-22 10:16:00,538 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 147 transitions. [2019-10-22 10:16:00,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:00,541 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 88 states and 148 transitions. [2019-10-22 10:16:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 148 transitions. [2019-10-22 10:16:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:16:00,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:16:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 87 states and 147 transitions. [2019-10-22 10:16:00,774 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 147 transitions. [2019-10-22 10:16:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:16:00,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:16:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 86 states and 146 transitions. [2019-10-22 10:16:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 146 transitions. [2019-10-22 10:16:00,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:16:00,896 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2019-10-22 10:16:00,907 INFO L771 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2019-10-22 10:16:00,972 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,976 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,976 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,977 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,977 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,977 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,977 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,977 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,978 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:00,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:00 ImpRootNode [2019-10-22 10:16:00,979 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:00,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:00,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:00,980 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:00,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:00" (3/4) ... [2019-10-22 10:16:00,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:16:01,004 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2019-10-22 10:16:01,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:16:01,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:16:01,125 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f866a9c8-d558-462d-8f1a-46b4f44fd79d/bin/ukojak/witness.graphml [2019-10-22 10:16:01,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:01,129 INFO L168 Benchmark]: Toolchain (without parser) took 2033.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 941.8 MB in the beginning and 995.4 MB in the end (delta: -53.6 MB). Peak memory consumption was 106.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,129 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:01,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 941.8 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,130 INFO L168 Benchmark]: Boogie Preprocessor took 51.56 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,131 INFO L168 Benchmark]: RCFGBuilder took 815.46 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: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,131 INFO L168 Benchmark]: CodeCheck took 490.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,131 INFO L168 Benchmark]: Witness Printer took 147.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:01,135 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 86 locations, 2 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 14 SDslu, 8 SDs, 0 SdLazy, 62 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 274]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 274]: 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: 171]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 461.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 941.8 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.56 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 815.46 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: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. * CodeCheck took 490.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * Witness Printer took 147.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...