./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/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 f39f60c3148e6a8957b92a35d12d506fd8229368 ..................................................................................................................................................................................................................................................... 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 16:31:50,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:31:50,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:31:50,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:31:50,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:31:50,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:31:50,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:31:50,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:31:50,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:31:50,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:31:50,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:31:50,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:31:50,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:31:50,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:31:50,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:31:50,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:31:50,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:31:50,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:31:50,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:31:50,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:31:50,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:31:50,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:31:50,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:31:50,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:31:50,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:31:50,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:31:50,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:31:50,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:31:50,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:31:50,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:31:50,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:31:50,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:31:50,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:31:50,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:31:50,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:31:50,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:31:50,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:31:50,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:31:50,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:31:50,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:31:50,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:31:50,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:31:50,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:31:50,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:31:50,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:31:50,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:31:50,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:31:50,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:31:50,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:31:50,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:31:50,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:31:50,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:31:50,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:31:50,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:31:50,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:31:50,337 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:31:50,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:31:50,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:31:50,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:31:50,338 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:31:50,338 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:31:50,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:31:50,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:31:50,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:31:50,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:31:50,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:31:50,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:31:50,340 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:31:50,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:31:50,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:31:50,341 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_fcac4009-f40d-4e14-96dd-da7a31f4633a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f60c3148e6a8957b92a35d12d506fd8229368 [2020-12-01 16:31:50,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:31:50,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:31:50,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:31:50,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:31:50,806 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:31:50,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2020-12-01 16:31:50,916 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/data/a8f8fd732/8803973009f54d17973e3d7b2ee1e7ce/FLAGfe7052e57 [2020-12-01 16:31:51,597 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:31:51,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2020-12-01 16:31:51,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/data/a8f8fd732/8803973009f54d17973e3d7b2ee1e7ce/FLAGfe7052e57 [2020-12-01 16:31:51,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/data/a8f8fd732/8803973009f54d17973e3d7b2ee1e7ce [2020-12-01 16:31:51,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:31:51,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:31:51,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:31:51,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:31:51,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:31:51,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:31:51" (1/1) ... [2020-12-01 16:31:51,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427bcc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:51, skipping insertion in model container [2020-12-01 16:31:51,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:31:51" (1/1) ... [2020-12-01 16:31:51,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:31:52,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:31:52,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:31:52,255 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:31:52,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:31:52,307 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:31:52,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52 WrapperNode [2020-12-01 16:31:52,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:31:52,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:31:52,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:31:52,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:31:52,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:31:52,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:31:52,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:31:52,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:31:52,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... [2020-12-01 16:31:52,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:31:52,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:31:52,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:31:52,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:31:52,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:31:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/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 16:31:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:31:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2020-12-01 16:31:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2020-12-01 16:31:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:31:52,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:31:52,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:31:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:31:53,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:31:53,112 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 16:31:53,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:53 BoogieIcfgContainer [2020-12-01 16:31:53,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:31:53,117 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:31:53,117 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:31:53,145 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:31:53,145 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:53" (1/1) ... [2020-12-01 16:31:53,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:31:53,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-12-01 16:31:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-12-01 16:31:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:31:53,250 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:53,526 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 16:31:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:53,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2020-12-01 16:31:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-01 16:31:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:31:53,625 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:53,734 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 16:31:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:53,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-12-01 16:31:53,873 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-01 16:31:53,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:31:53,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:53,951 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 16:31:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-12-01 16:31:53,988 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-12-01 16:31:53,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:31:53,995 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:31:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:31:54,084 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 16:31:54,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:31:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 16:31:54,279 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 16:31:54,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:31:54,281 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-12-01 16:31:54,294 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 16:31:54,338 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:31:54,344 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:31:54,345 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:31:54,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:31:54 ImpRootNode [2020-12-01 16:31:54,346 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:31:54,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:31:54,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:31:54,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:31:54,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:31:53" (3/4) ... [2020-12-01 16:31:54,357 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:31:54,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2020-12-01 16:31:54,386 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 16:31:54,387 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:31:54,387 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:31:54,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fcac4009-f40d-4e14-96dd-da7a31f4633a/bin/ukojak/witness.graphml [2020-12-01 16:31:54,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:31:54,490 INFO L168 Benchmark]: Toolchain (without parser) took 2528.19 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 60.1 MB in the beginning and 78.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,492 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 33.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:31:54,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.83 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 68.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.78 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,493 INFO L168 Benchmark]: Boogie Preprocessor took 62.13 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:31:54,494 INFO L168 Benchmark]: RCFGBuilder took 680.79 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 46.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,494 INFO L168 Benchmark]: CodeCheck took 1229.87 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 46.2 MB in the beginning and 81.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,495 INFO L168 Benchmark]: Witness Printer took 138.49 ms. Allocated memory is still 132.1 MB. Free memory was 81.1 MB in the beginning and 78.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:31:54,498 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 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 146 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 33.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.83 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 68.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.78 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 67.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.13 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 680.79 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 46.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 1229.87 ms. Allocated memory was 92.3 MB in the beginning and 132.1 MB in the end (delta: 39.8 MB). Free memory was 46.2 MB in the beginning and 81.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 138.49 ms. Allocated memory is still 132.1 MB. Free memory was 81.1 MB in the beginning and 78.3 MB in the end (delta: 2.8 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...