./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/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 64bit --witnessprinter.graph.data.programhash 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:03:01,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:03:01,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:03:01,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:03:01,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:03:01,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:03:01,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:03:01,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:03:01,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:03:01,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:03:01,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:03:01,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:03:01,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:03:01,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:03:01,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:03:01,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:03:01,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:03:01,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:03:01,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:03:01,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:03:01,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:03:01,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:03:01,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:03:01,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:03:01,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:03:01,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:03:01,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:03:01,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:03:01,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:03:01,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:03:01,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:03:01,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:03:01,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:03:01,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:03:01,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:03:01,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:03:01,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:03:01,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:03:01,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:03:01,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:03:01,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:03:01,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:03:01,641 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:03:01,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:03:01,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:03:01,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:03:01,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:03:01,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:03:01,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:03:01,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:03:01,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:03:01,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:03:01,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:03:01,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:03:01,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:03:01,648 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:03:01,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:03:01,649 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:03:01,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:03:01,649 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:03:01,650 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:03:01,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:03:01,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:03:01,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:03:01,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:03:01,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:03:01,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:03:01,652 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:03:01,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:03:01,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:03:01,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2020-12-01 17:03:02,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:03:02,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:03:02,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:03:02,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:03:02,077 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:03:02,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-12-01 17:03:02,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/data/d4c672990/d40a62aff619481f9b39aba73ddbc681/FLAGc7ded7aeb [2020-12-01 17:03:02,789 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:03:02,790 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-12-01 17:03:02,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/data/d4c672990/d40a62aff619481f9b39aba73ddbc681/FLAGc7ded7aeb [2020-12-01 17:03:03,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/data/d4c672990/d40a62aff619481f9b39aba73ddbc681 [2020-12-01 17:03:03,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:03:03,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:03:03,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:03:03,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:03:03,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:03:03,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03, skipping insertion in model container [2020-12-01 17:03:03,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:03:03,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:03:03,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:03:03,365 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:03:03,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:03:03,419 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:03:03,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03 WrapperNode [2020-12-01 17:03:03,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:03:03,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:03:03,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:03:03,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:03:03,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:03:03,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:03:03,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:03:03,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:03:03,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:03:03,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:03:03,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:03:03,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:03:03,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:03:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/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 [2020-12-01 17:03:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:03:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:03:03,764 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:03:03,765 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:03:03,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:03:03 BoogieIcfgContainer [2020-12-01 17:03:03,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:03:03,768 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:03:03,768 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:03:03,779 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:03:03,779 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:03:03" (1/1) ... [2020-12-01 17:03:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:03:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:03,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-12-01 17:03:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 17:03:03,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:03:03,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2020-12-01 17:03:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-12-01 17:03:04,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:03:04,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2020-12-01 17:03:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2020-12-01 17:03:04,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:03:04,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 48 transitions. [2020-12-01 17:03:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 48 transitions. [2020-12-01 17:03:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:03:04,731 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 54 transitions. [2020-12-01 17:03:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 54 transitions. [2020-12-01 17:03:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:03:04,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 33 states and 61 transitions. [2020-12-01 17:03:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2020-12-01 17:03:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:03:05,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 69 transitions. [2020-12-01 17:03:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2020-12-01 17:03:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:03:05,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 36 states and 68 transitions. [2020-12-01 17:03:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2020-12-01 17:03:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:03:06,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:03:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:06,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 39 states and 74 transitions. [2020-12-01 17:03:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2020-12-01 17:03:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:03:06,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:03:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 41 states and 76 transitions. [2020-12-01 17:03:06,814 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 76 transitions. [2020-12-01 17:03:06,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:03:06,815 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:03:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2020-12-01 17:03:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2020-12-01 17:03:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:03:07,107 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 77 transitions. [2020-12-01 17:03:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 77 transitions. [2020-12-01 17:03:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:03:07,402 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:03:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 43 states and 76 transitions. [2020-12-01 17:03:07,634 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2020-12-01 17:03:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:03:07,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:03:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:03:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 17:03:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:03:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-01 17:03:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 17:03:08,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:03:08,028 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2020-12-01 17:03:08,038 INFO L765 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2020-12-01 17:03:08,130 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 17:03:08,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:03:08 ImpRootNode [2020-12-01 17:03:08,146 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:03:08,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:03:08,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:03:08,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:03:08,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:03:03" (3/4) ... [2020-12-01 17:03:08,152 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:03:08,165 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:03:08,165 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:03:08,165 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:03:08,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ccb98179-260d-40ad-ac02-e5b70df142bf/bin/ukojak/witness.graphml [2020-12-01 17:03:08,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:03:08,250 INFO L168 Benchmark]: Toolchain (without parser) took 5082.61 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 67.0 MB in the beginning and 60.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,250 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 83.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:03:08,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.45 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 79.3 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.42 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:03:08,253 INFO L168 Benchmark]: Boogie Preprocessor took 16.08 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 77.2 MB in the end (delta: 753.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,254 INFO L168 Benchmark]: RCFGBuilder took 291.59 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 65.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,255 INFO L168 Benchmark]: CodeCheck took 4378.56 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 65.4 MB in the beginning and 62.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,256 INFO L168 Benchmark]: Witness Printer took 100.30 ms. Allocated memory is still 127.9 MB. Free memory was 62.1 MB in the beginning and 60.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:03:08,260 INFO L339 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, 17 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45056 SDtfs, 64664 SDslu, 103464 SDs, 0 SdLazy, 174888 SolverSat, 33000 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1059 GetRequests, 926 SyntacticMatches, 35 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4618 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 1559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 20/20 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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 - PositiveResult [Line: 24]: 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 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && z <= 2147483647) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 83.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.45 ms. Allocated memory is still 102.8 MB. Free memory was 66.8 MB in the beginning and 79.3 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.42 ms. Allocated memory is still 102.8 MB. Free memory was 79.3 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.08 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 77.2 MB in the end (delta: 753.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 291.59 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 65.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4378.56 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 65.4 MB in the beginning and 62.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Witness Printer took 100.30 ms. Allocated memory is still 127.9 MB. Free memory was 62.1 MB in the beginning and 60.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...