./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.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_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ..................................................................................................................................................................................................................................................................................................................... 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 04:33:00,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:00,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:00,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:00,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:00,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:00,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:00,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:00,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:00,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:00,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:00,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:00,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:00,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:00,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:00,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:00,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:00,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:00,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:00,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:00,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:00,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:00,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:00,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:00,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:00,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:00,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:00,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:00,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:00,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:00,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:00,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:00,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:00,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:00,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:00,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:00,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:00,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:00,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:00,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:00,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:00,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:33:00,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:00,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:00,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:00,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:00,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:00,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:00,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:00,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:33:00,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:00,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:00,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:00,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:00,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:00,716 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:33:00,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:00,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:00,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:00,717 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:00,717 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:00,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:00,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:00,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:00,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:00,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:00,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:00,719 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:00,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:00,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:00,719 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_a3cf73a7-faf7-4813-9122-afb93b556080/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2020-11-28 04:33:01,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:01,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:01,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:01,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:01,037 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:01,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-11-28 04:33:01,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/data/4fd9cebb0/0b849dd2e23344288643b55828fdf041/FLAG9f17aaccd [2020-11-28 04:33:01,570 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:01,571 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-11-28 04:33:01,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/data/4fd9cebb0/0b849dd2e23344288643b55828fdf041/FLAG9f17aaccd [2020-11-28 04:33:01,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/data/4fd9cebb0/0b849dd2e23344288643b55828fdf041 [2020-11-28 04:33:01,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:01,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:01,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:01,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:01,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:01,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:01" (1/1) ... [2020-11-28 04:33:01,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26419807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:01, skipping insertion in model container [2020-11-28 04:33:01,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:01" (1/1) ... [2020-11-28 04:33:02,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:02,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:02,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:02,187 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:02,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:02,211 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:02,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02 WrapperNode [2020-11-28 04:33:02,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:02,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:02,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:02,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:02,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:02,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:02,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:02,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:02,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:02,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:02,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:02,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:02,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/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 04:33:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:02,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:02,718 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:33:02,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:02 BoogieIcfgContainer [2020-11-28 04:33:02,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:02,721 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:02,721 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:02,730 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:02,731 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:02" (1/1) ... [2020-11-28 04:33:02,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:02,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-28 04:33:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-28 04:33:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:33:02,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:02,928 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 04:33:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2020-11-28 04:33:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2020-11-28 04:33:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:03,016 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:03,057 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 04:33:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-11-28 04:33:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-11-28 04:33:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:03,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:03,155 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 04:33:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-11-28 04:33:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-11-28 04:33:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:33:03,371 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:03,435 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 04:33:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2020-11-28 04:33:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-11-28 04:33:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:03,645 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:03,694 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 04:33:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2020-11-28 04:33:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 04:33:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:04,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:33:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2020-11-28 04:33:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-28 04:33:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:04,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:04,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2020-11-28 04:33:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2020-11-28 04:33:05,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:05,003 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2020-11-28 04:33:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-11-28 04:33:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:33:05,143 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:05,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:33:05,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2020-11-28 04:33:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2020-11-28 04:33:05,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:33:05,398 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:33:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-11-28 04:33:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-11-28 04:33:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:33:05,663 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:33:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 57 transitions. [2020-11-28 04:33:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2020-11-28 04:33:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:33:05,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:33:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2020-11-28 04:33:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2020-11-28 04:33:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:33:06,289 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:33:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-11-28 04:33:06,426 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-11-28 04:33:06,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:33:06,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:33:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:06,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-28 04:33:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 04:33:06,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:33:06,594 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2020-11-28 04:33:06,600 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:33:06,800 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:33:06,810 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:33:06,810 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-11-28 04:33:06,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:06 ImpRootNode [2020-11-28 04:33:06,817 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:06,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:06,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:06,819 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:06,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:02" (3/4) ... [2020-11-28 04:33:06,823 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:33:06,842 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:33:06,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:33:06,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:33:06,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a3cf73a7-faf7-4813-9122-afb93b556080/bin/ukojak/witness.graphml [2020-11-28 04:33:06,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:06,900 INFO L168 Benchmark]: Toolchain (without parser) took 4915.41 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 74.9 MB in the beginning and 117.4 MB in the end (delta: -42.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:06,901 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:06,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.96 ms. Allocated memory is still 107.0 MB. Free memory was 74.7 MB in the beginning and 85.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:06,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.52 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 84.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:06,904 INFO L168 Benchmark]: Boogie Preprocessor took 18.72 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 83.1 MB in the end (delta: 884.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:06,905 INFO L168 Benchmark]: RCFGBuilder took 457.71 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 72.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:06,906 INFO L168 Benchmark]: CodeCheck took 4097.24 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 72.1 MB in the beginning and 120.6 MB in the end (delta: -48.5 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:06,907 INFO L168 Benchmark]: Witness Printer took 79.30 ms. Allocated memory is still 157.3 MB. Free memory was 120.6 MB in the beginning and 117.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:06,911 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, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 15, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24576 SDtfs, 76130 SDslu, 0 SDs, 0 SdLazy, 385178 SolverSat, 94024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1134 GetRequests, 972 SyntacticMatches, 68 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3740 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 3311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 44/48 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((x <= y && x <= 1073741823) && 0 <= x) || ((1 <= y && x <= 1073741823) && y < x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.96 ms. Allocated memory is still 107.0 MB. Free memory was 74.7 MB in the beginning and 85.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.52 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 84.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.72 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 83.1 MB in the end (delta: 884.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 457.71 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 72.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 4097.24 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 72.1 MB in the beginning and 120.6 MB in the end (delta: -48.5 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. * Witness Printer took 79.30 ms. Allocated memory is still 157.3 MB. Free memory was 120.6 MB in the beginning and 117.4 MB in the end (delta: 3.1 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...