./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/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 09113822ff1f24d8cc0fc226021f8d226800fb83 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:07:24,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:07:24,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:07:24,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:07:24,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:07:24,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:07:24,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:07:24,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:07:24,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:07:25,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:07:25,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:07:25,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:07:25,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:07:25,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:07:25,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:07:25,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:07:25,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:07:25,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:07:25,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:07:25,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:07:25,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:07:25,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:07:25,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:07:25,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:07:25,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:07:25,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:07:25,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:07:25,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:07:25,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:07:25,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:07:25,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:07:25,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:07:25,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:07:25,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:07:25,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:07:25,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:07:25,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:07:25,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:07:25,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:07:25,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:07:25,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:07:25,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-01 18:07:25,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:07:25,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:07:25,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:07:25,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:07:25,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:07:25,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:07:25,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:07:25,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:07:25,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:07:25,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:07:25,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:07:25,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:07:25,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:07:25,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:07:25,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:07:25,140 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 18:07:25,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:07:25,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:07:25,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:07:25,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:07:25,142 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:07:25,142 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:07:25,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:07:25,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:07:25,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:07:25,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:07:25,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:07:25,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:07:25,145 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:07:25,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:07:25,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:07:25,146 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_bae0b123-8ee5-4c20-bd2e-07d557e541c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09113822ff1f24d8cc0fc226021f8d226800fb83 [2020-12-01 18:07:25,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:07:25,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:07:25,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:07:25,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:07:25,564 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:07:25,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_2.c [2020-12-01 18:07:25,670 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/data/ad08d95f5/1b5e7271afa64ffc8350b9ed83018ff2/FLAGa79fb2a56 [2020-12-01 18:07:26,395 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:07:26,396 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/sv-benchmarks/c/bitvector/gcd_2.c [2020-12-01 18:07:26,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/data/ad08d95f5/1b5e7271afa64ffc8350b9ed83018ff2/FLAGa79fb2a56 [2020-12-01 18:07:26,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/data/ad08d95f5/1b5e7271afa64ffc8350b9ed83018ff2 [2020-12-01 18:07:26,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:07:26,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:07:26,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:07:26,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:07:26,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:07:26,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:07:26" (1/1) ... [2020-12-01 18:07:26,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a167d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:26, skipping insertion in model container [2020-12-01 18:07:26,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:07:26" (1/1) ... [2020-12-01 18:07:26,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:07:26,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:07:27,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:07:27,105 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:07:27,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:07:27,177 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:07:27,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27 WrapperNode [2020-12-01 18:07:27,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:07:27,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:07:27,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:07:27,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:07:27,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:07:27,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:07:27,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:07:27,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:07:27,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... [2020-12-01 18:07:27,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:07:27,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:07:27,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:07:27,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:07:27,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:07:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:07:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:07:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:07:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:07:28,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:07:28,229 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-01 18:07:28,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:28 BoogieIcfgContainer [2020-12-01 18:07:28,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:07:28,234 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:07:28,234 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:07:28,253 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:07:28,253 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:28" (1/1) ... [2020-12-01 18:07:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:07:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-01 18:07:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-01 18:07:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:07:28,341 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 18:07:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 18:07:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:07:28,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-01 18:07:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 18:07:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:07:28,826 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-12-01 18:07:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-01 18:07:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:07:29,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2020-12-01 18:07:29,334 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2020-12-01 18:07:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:07:29,334 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 18:07:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 18:07:29,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:07:29,706 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-01 18:07:29,719 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 18:07:29,780 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:07:29,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:07:29 ImpRootNode [2020-12-01 18:07:29,786 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:07:29,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:07:29,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:07:29,790 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:07:29,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:28" (3/4) ... [2020-12-01 18:07:29,795 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:07:29,818 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-01 18:07:29,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 18:07:29,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:07:29,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:07:29,881 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bae0b123-8ee5-4c20-bd2e-07d557e541c1/bin/ukojak/witness.graphml [2020-12-01 18:07:29,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:07:29,893 INFO L168 Benchmark]: Toolchain (without parser) took 3104.90 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 55.1 MB in the beginning and 61.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,894 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 86.0 MB. Free memory was 45.5 MB in the beginning and 45.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:07:29,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.19 ms. Allocated memory is still 86.0 MB. Free memory was 55.0 MB in the beginning and 63.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.90 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,897 INFO L168 Benchmark]: Boogie Preprocessor took 61.62 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:07:29,897 INFO L168 Benchmark]: RCFGBuilder took 924.85 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 41.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,898 INFO L168 Benchmark]: CodeCheck took 1551.92 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 41.9 MB in the beginning and 64.0 MB in the end (delta: -22.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,899 INFO L168 Benchmark]: Witness Printer took 100.25 ms. Allocated memory is still 111.1 MB. Free memory was 64.0 MB in the beginning and 61.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:29,903 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: 1.4s, 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.6s 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 0.38 ms. Allocated memory is still 86.0 MB. Free memory was 45.5 MB in the beginning and 45.5 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.19 ms. Allocated memory is still 86.0 MB. Free memory was 55.0 MB in the beginning and 63.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.90 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.62 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 924.85 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 41.9 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 1551.92 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 41.9 MB in the beginning and 64.0 MB in the end (delta: -22.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Witness Printer took 100.25 ms. Allocated memory is still 111.1 MB. Free memory was 64.0 MB in the beginning and 61.0 MB in the end (delta: 3.0 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...