./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/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 e153b2922c94b2bcf8f70f9e86faabd543aefaed .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:43:18,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:18,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:18,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:18,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:18,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:18,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:18,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:18,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:18,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:18,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:18,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:18,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:18,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:18,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:18,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:18,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:18,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:18,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:18,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:18,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:18,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:18,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:18,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:18,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:18,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:18,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:18,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:18,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:18,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:18,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:18,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:18,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:18,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:18,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:18,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:18,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:18,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:18,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:18,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:18,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:18,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:43:18,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:18,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:18,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:18,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:18,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:18,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:18,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:18,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:18,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:18,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:18,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:18,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:18,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:18,641 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:43:18,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:18,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:18,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:18,642 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:18,642 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:18,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:18,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:18,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:18,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:18,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:18,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:18,644 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:18,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:18,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:18,644 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_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2020-11-28 04:43:18,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:18,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:18,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:18,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:18,992 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:18,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-11-28 04:43:19,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/data/febda19a4/9a86a67ec5214b6986fbf9774e40e03a/FLAG2524c1110 [2020-11-28 04:43:19,487 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:19,487 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2020-11-28 04:43:19,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/data/febda19a4/9a86a67ec5214b6986fbf9774e40e03a/FLAG2524c1110 [2020-11-28 04:43:19,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/data/febda19a4/9a86a67ec5214b6986fbf9774e40e03a [2020-11-28 04:43:19,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:19,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:19,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:19,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:19,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:19,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:19" (1/1) ... [2020-11-28 04:43:19,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1742830a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:19, skipping insertion in model container [2020-11-28 04:43:19,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:19" (1/1) ... [2020-11-28 04:43:19,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:19,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:20,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,073 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:20,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,126 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:20,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20 WrapperNode [2020-11-28 04:43:20,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:20,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:20,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:20,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:20,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:20,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:20,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:20,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:20,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/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 [2020-11-28 04:43:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:20,467 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:20,467 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:43:20,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20 BoogieIcfgContainer [2020-11-28 04:43:20,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:20,471 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:20,471 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:20,497 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:20,497 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:43:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:43:20,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:20,560 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:20,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:43:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:43:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:20,782 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-11-28 04:43:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-28 04:43:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:43:20,824 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-28 04:43:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-28 04:43:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:43:20,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:43:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:43:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:21,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:43:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-28 04:43:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-28 04:43:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:21,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:21,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:21,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-11-28 04:43:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-28 04:43:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:21,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:43:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:43:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:43:21,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:43:21,622 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-28 04:43:21,628 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:43:21,740 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:43:21,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:21 ImpRootNode [2020-11-28 04:43:21,757 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:21,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:21,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:21,759 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:21,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20" (3/4) ... [2020-11-28 04:43:21,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:43:21,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:43:21,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:43:21,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:43:21,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aae0f98d-50d5-49c9-aba9-6e8726b4cc9a/bin/ukojak/witness.graphml [2020-11-28 04:43:21,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:21,844 INFO L168 Benchmark]: Toolchain (without parser) took 1943.07 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 42.3 MB in the beginning and 60.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,845 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 77.6 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.44 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.1 MB in the beginning and 72.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.43 ms. Allocated memory is still 94.4 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,852 INFO L168 Benchmark]: Boogie Preprocessor took 29.10 ms. Allocated memory is still 94.4 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 892.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,853 INFO L168 Benchmark]: RCFGBuilder took 267.90 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 61.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,854 INFO L168 Benchmark]: CodeCheck took 1287.11 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.9 MB in the beginning and 62.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,855 INFO L168 Benchmark]: Witness Printer took 82.17 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 60.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,868 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 724 SDslu, 530 SDs, 0 SdLazy, 1916 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 77.6 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 228.44 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.1 MB in the beginning and 72.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.43 ms. Allocated memory is still 94.4 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.10 ms. Allocated memory is still 94.4 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 892.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 267.90 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 61.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1287.11 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.9 MB in the beginning and 62.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Witness Printer took 82.17 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 60.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...