./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex6.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/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 1ddf57665a2dc09f80314050c3325075c7d61dd7 ...................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:41:44,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:41:44,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:41:44,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:41:44,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:41:44,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:41:44,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:41:44,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:41:44,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:41:44,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:41:44,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:41:44,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:41:44,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:41:44,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:41:44,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:41:44,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:41:44,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:41:44,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:41:44,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:41:44,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:41:44,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:41:44,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:41:44,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:41:44,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:41:44,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:41:44,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:41:44,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:41:44,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:41:44,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:41:44,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:41:44,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:41:44,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:41:44,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:41:44,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:41:44,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:41:44,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:41:44,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:41:44,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:41:44,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:41:44,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:41:44,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:41:44,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:41:44,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:41:44,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:41:44,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:41:44,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:41:44,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:41:44,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:41:44,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:41:44,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:41:44,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:41:44,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:41:44,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:41:44,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:41:44,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:41:44,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:41:44,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:41:44,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:41:44,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:41:44,276 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:41:44,276 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:41:44,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:41:44,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:41:44,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:44,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:41:44,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:41:44,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:41:44,278 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:41:44,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:41:44,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:41:44,278 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_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ddf57665a2dc09f80314050c3325075c7d61dd7 [2020-11-28 04:41:44,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:41:44,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:41:44,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:41:44,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:41:44,632 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:41:44,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex6.c [2020-11-28 04:41:44,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/data/de41e3f42/231c03578b004e078bf6b2fe74c2c1e6/FLAGd2d511a68 [2020-11-28 04:41:45,228 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:41:45,229 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex6.c [2020-11-28 04:41:45,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/data/de41e3f42/231c03578b004e078bf6b2fe74c2c1e6/FLAGd2d511a68 [2020-11-28 04:41:45,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/data/de41e3f42/231c03578b004e078bf6b2fe74c2c1e6 [2020-11-28 04:41:45,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:41:45,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:41:45,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:45,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:41:45,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:41:45,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45, skipping insertion in model container [2020-11-28 04:41:45,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:41:45,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:41:45,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:45,903 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:41:45,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:45,929 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:41:45,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45 WrapperNode [2020-11-28 04:41:45,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:45,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:45,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:41:45,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:41:45,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:45,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:41:45,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:41:45,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:41:45,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:45,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... [2020-11-28 04:41:46,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:41:46,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:41:46,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:41:46,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:41:46,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/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 04:41:46,086 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-28 04:41:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-28 04:41:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-28 04:41:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-28 04:41:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:41:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:41:46,347 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:41:46,348 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 04:41:46,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:46 BoogieIcfgContainer [2020-11-28 04:41:46,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:41:46,350 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:41:46,350 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:41:46,363 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:41:46,363 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:46" (1/1) ... [2020-11-28 04:41:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:41:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2020-11-28 04:41:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-11-28 04:41:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:41:46,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:46,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:46,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:46,641 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:46,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:46,675 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-28 04:41:46,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:41:46 ImpRootNode [2020-11-28 04:41:46,701 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:41:46,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:41:46,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:41:46,705 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:41:46,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:46" (3/4) ... [2020-11-28 04:41:46,708 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:41:46,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2c87378-31c9-4bb0-8029-d24d5fa3a4e6/bin/ukojak/witness.graphml [2020-11-28 04:41:46,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:41:46,755 INFO L168 Benchmark]: Toolchain (without parser) took 1137.64 ms. Allocated memory is still 90.2 MB. Free memory was 59.2 MB in the beginning and 42.1 MB in the end (delta: 17.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:46,756 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:46,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.57 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 68.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:46,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.62 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:46,763 INFO L168 Benchmark]: Boogie Preprocessor took 35.13 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.4 MB in the end (delta: 786.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:46,764 INFO L168 Benchmark]: RCFGBuilder took 345.96 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 53.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:46,764 INFO L168 Benchmark]: CodeCheck took 351.37 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 43.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:46,765 INFO L168 Benchmark]: Witness Printer took 50.09 ms. Allocated memory is still 90.2 MB. Free memory was 43.4 MB in the beginning and 42.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:46,774 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 3 procedures, 36 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L34] int a = __VERIFIER_nondet_int(); [L35] int b = __VERIFIER_nondet_int(); [L36] COND TRUE a >= 0 && b >= 0 [L37] CALL f(a, b) VAL [\old(a)=2147483647, \old(b)=1] [L18] COND FALSE !(b == 0) VAL [\old(a)=2147483647, \old(b)=1, a=2147483647, b=1] [L21] 1+a VAL [\old(a)=2147483647, \old(b)=1, a=2147483647, b=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.57 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 68.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.62 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.13 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.4 MB in the end (delta: 786.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 345.96 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 53.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 351.37 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 43.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 50.09 ms. Allocated memory is still 90.2 MB. Free memory was 43.4 MB in the beginning and 42.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...