./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46c6e353922721c0838b7fb617ab086256b6c516 ...................................................................................................................................................................................................................................................... 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 04:38:13,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:13,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:13,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:13,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:13,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:13,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:13,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:13,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:13,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:13,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:13,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:13,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:13,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:13,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:13,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:13,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:13,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:13,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:13,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:13,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:13,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:13,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:13,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:13,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:13,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:13,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:13,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:13,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:13,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:13,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:13,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:13,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:13,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:13,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:13,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:13,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:13,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:13,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:13,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:13,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:13,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-28 04:38:13,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:13,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:13,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:13,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:13,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:13,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:13,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:13,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:13,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:38:13,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:13,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:13,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:13,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:13,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:13,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:13,699 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:38:13,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:13,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:13,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:13,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:13,701 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:13,701 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:13,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:13,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:13,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:13,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:13,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:13,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:13,702 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:13,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:13,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:13,705 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_e71c89c1-da30-49f9-9c45-e380a14f0f43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46c6e353922721c0838b7fb617ab086256b6c516 [2020-11-28 04:38:14,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:14,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:14,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:14,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:14,052 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:14,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_3.c [2020-11-28 04:38:14,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/data/628b00718/a534cb1be33a476d9925ac830e8bc297/FLAGbb4417e29 [2020-11-28 04:38:14,566 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:14,566 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/sv-benchmarks/c/bitvector/gcd_3.c [2020-11-28 04:38:14,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/data/628b00718/a534cb1be33a476d9925ac830e8bc297/FLAGbb4417e29 [2020-11-28 04:38:14,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/data/628b00718/a534cb1be33a476d9925ac830e8bc297 [2020-11-28 04:38:14,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:14,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:14,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:14,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:14,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:14,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:14" (1/1) ... [2020-11-28 04:38:14,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556ce544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14, skipping insertion in model container [2020-11-28 04:38:14,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:14" (1/1) ... [2020-11-28 04:38:14,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:14,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:15,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:15,181 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:15,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:15,211 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:15,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15 WrapperNode [2020-11-28 04:38:15,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:15,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:15,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:15,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:15,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:15,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:15,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:15,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:15,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:15,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:15,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:15,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:15,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/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 04:38:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:15,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:15,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:15,857 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-28 04:38:15,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15 BoogieIcfgContainer [2020-11-28 04:38:15,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:15,860 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:15,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:15,873 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:15,873 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15" (1/1) ... [2020-11-28 04:38:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:15,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-28 04:38:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-28 04:38:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:15,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:16,078 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 04:38:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:38:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:38:16,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:16,177 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:16,242 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 04:38:16,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-28 04:38:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 04:38:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:16,321 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:16,379 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 04:38:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:38:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:38:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:16,581 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:16,653 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 04:38:16,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:16,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-11-28 04:38:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-11-28 04:38:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:38:16,734 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:16,786 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 04:38:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-28 04:38:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-28 04:38:17,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:38:17,014 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-11-28 04:38:17,020 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:38:17,054 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:38:17,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:17 ImpRootNode [2020-11-28 04:38:17,059 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:17,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:17,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:17,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:17,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15" (3/4) ... [2020-11-28 04:38:17,068 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:38:17,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-28 04:38:17,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 04:38:17,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:38:17,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:38:17,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e71c89c1-da30-49f9-9c45-e380a14f0f43/bin/ukojak/witness.graphml [2020-11-28 04:38:17,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:17,168 INFO L168 Benchmark]: Toolchain (without parser) took 2205.44 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 73.2 MB in the beginning and 101.2 MB in the end (delta: -28.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:17,169 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 78.1 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:17,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.94 ms. Allocated memory is still 107.0 MB. Free memory was 73.0 MB in the beginning and 83.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:17,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.9 MB in the beginning and 82.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:17,173 INFO L168 Benchmark]: Boogie Preprocessor took 45.58 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:17,175 INFO L168 Benchmark]: RCFGBuilder took 551.81 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 62.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:17,176 INFO L168 Benchmark]: CodeCheck took 1199.24 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 62.0 MB in the beginning and 103.3 MB in the end (delta: -41.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:17,176 INFO L168 Benchmark]: Witness Printer took 97.43 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 101.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:17,179 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, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 132 SDslu, 0 SDs, 0 SdLazy, 496 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 16]: 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: 16]: 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: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 78.1 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.94 ms. Allocated memory is still 107.0 MB. Free memory was 73.0 MB in the beginning and 83.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 107.0 MB. Free memory was 83.9 MB in the beginning and 82.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.58 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 551.81 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 62.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 1199.24 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 62.0 MB in the beginning and 103.3 MB in the end (delta: -41.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * Witness Printer took 97.43 ms. Allocated memory is still 130.0 MB. Free memory was 103.3 MB in the beginning and 101.2 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...