./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.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_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/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 80e52f65dba85ecdcfa89dcdd215c6def71ea4a3 .............................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-03 11:25:50,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:25:50,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:25:50,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:25:50,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:25:50,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:25:50,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:25:50,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:25:50,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:25:50,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:25:50,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:25:50,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:25:50,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:25:50,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:25:50,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:25:50,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:25:50,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:25:50,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:25:50,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:25:50,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:25:50,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:25:50,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:25:50,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:25:50,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:25:50,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:25:50,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:25:50,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:25:50,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:25:50,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:25:50,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:25:50,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:25:50,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:25:50,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:25:50,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:25:50,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:25:50,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:25:50,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:25:50,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:25:50,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:25:50,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:25:50,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:25:50,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:25:50,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:25:50,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:25:50,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:25:50,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:25:50,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:25:50,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:25:50,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:25:50,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:25:50,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:25:50,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:25:50,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:25:50,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:25:50,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:25:50,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:25:50,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:25:50,402 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:25:50,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:25:50,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:25:50,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:25:50,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:25:50,403 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:25:50,404 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:25:50,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:25:50,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:25:50,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:25:50,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:25:50,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:25:50,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:25:50,406 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:25:50,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:25:50,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:25:50,408 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_4a2149ce-911c-4c2c-8dc5-868296da3c66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80e52f65dba85ecdcfa89dcdd215c6def71ea4a3 [2020-12-03 11:25:50,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:25:50,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:25:50,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:25:50,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:25:50,738 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:25:50,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b3_o5-1.c [2020-12-03 11:25:50,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/data/2f6d00435/a118abac1f7e468e8c86c5d9b71be504/FLAGde1c82753 [2020-12-03 11:25:51,340 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:25:51,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/sv-benchmarks/c/recursive-simple/id_b3_o5-1.c [2020-12-03 11:25:51,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/data/2f6d00435/a118abac1f7e468e8c86c5d9b71be504/FLAGde1c82753 [2020-12-03 11:25:51,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/data/2f6d00435/a118abac1f7e468e8c86c5d9b71be504 [2020-12-03 11:25:51,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:25:51,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:25:51,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:25:51,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:25:51,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:25:51,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:51,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db85bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51, skipping insertion in model container [2020-12-03 11:25:51,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:51,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:25:51,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:25:51,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:25:51,935 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:25:51,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:25:51,988 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:25:51,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51 WrapperNode [2020-12-03 11:25:51,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:25:51,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:25:51,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:25:51,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:25:52,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:25:52,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:25:52,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:25:52,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:25:52,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... [2020-12-03 11:25:52,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:25:52,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:25:52,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:25:52,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:25:52,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:25:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/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 [2020-12-03 11:25:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:25:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:25:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:25:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-03 11:25:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-03 11:25:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:25:52,684 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:25:52,686 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 11:25:52,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:25:52 BoogieIcfgContainer [2020-12-03 11:25:52,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:25:52,689 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:25:52,690 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:25:52,700 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:25:52,700 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:25:52" (1/1) ... [2020-12-03 11:25:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:25:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:25:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-03 11:25:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-03 11:25:52,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:25:52,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:25:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:25:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:25:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:25:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 23 transitions. [2020-12-03 11:25:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-12-03 11:25:53,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:25:53,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:25:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:25:53,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:25:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:25:53,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:25:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:25:53,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:25:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 11:25:53,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 11:25:53,143 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-12-03 11:25:53,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:25:53 ImpRootNode [2020-12-03 11:25:53,171 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:25:53,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:25:53,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:25:53,172 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:25:53,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:25:52" (3/4) ... [2020-12-03 11:25:53,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 11:25:53,241 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4a2149ce-911c-4c2c-8dc5-868296da3c66/bin/ukojak/witness.graphml [2020-12-03 11:25:53,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:25:53,244 INFO L168 Benchmark]: Toolchain (without parser) took 1556.82 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 50.2 MB in the beginning and 80.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,246 INFO L168 Benchmark]: CDTParser took 18.54 ms. Allocated memory is still 79.7 MB. Free memory was 35.9 MB in the beginning and 51.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.98 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 50.2 MB in the beginning and 80.9 MB in the end (delta: -30.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.96 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:25:53,249 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.9 MB in the end (delta: 685.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,250 INFO L168 Benchmark]: RCFGBuilder took 611.80 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 63.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,251 INFO L168 Benchmark]: CodeCheck took 481.61 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 37.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,252 INFO L168 Benchmark]: Witness Printer took 69.97 ms. Allocated memory is still 102.8 MB. Free memory was 37.8 MB in the beginning and 80.8 MB in the end (delta: -43.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-03 11:25:53,259 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, 18 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL id(input) VAL [\old(x)=-2147483648] [L7] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L8] x-1 VAL [\old(x)=-2147483648, x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 18.54 ms. Allocated memory is still 79.7 MB. Free memory was 35.9 MB in the beginning and 51.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.98 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 50.2 MB in the beginning and 80.9 MB in the end (delta: -30.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.96 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.9 MB in the end (delta: 685.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 611.80 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 63.0 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 481.61 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 37.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 69.97 ms. Allocated memory is still 102.8 MB. Free memory was 37.8 MB in the beginning and 80.8 MB in the end (delta: -43.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...