./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/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 091ae9d10f73e4826e5ce40c092816900bcc502a ........................................................................................................................................................................................................................... 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 [2020-11-29 18:47:49,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:47:49,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:47:49,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:47:49,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:47:49,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:47:49,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:47:49,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:47:49,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:47:49,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:47:49,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:47:49,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:47:49,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:47:49,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:47:49,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:47:49,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:47:49,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:47:49,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:47:49,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:47:49,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:47:49,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:47:49,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:47:49,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:47:49,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:47:49,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:47:49,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:47:49,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:47:49,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:47:49,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:47:49,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:47:49,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:47:49,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:47:49,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:47:49,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:47:49,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:47:49,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:47:49,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:47:49,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:47:49,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:47:49,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:47:49,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:47:49,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-29 18:47:50,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:47:50,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:47:50,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 18:47:50,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 18:47:50,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:47:50,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:47:50,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:47:50,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:47:50,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:47:50,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:47:50,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:47:50,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:47:50,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:47:50,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:47:50,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:47:50,026 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 18:47:50,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:47:50,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:47:50,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:47:50,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:47:50,027 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 18:47:50,027 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 18:47:50,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:47:50,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:47:50,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 18:47:50,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:47:50,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:47:50,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:47:50,029 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 18:47:50,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:47:50,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:47:50,032 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_9ea9e910-3542-4183-a769-9e913c6f0029/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 091ae9d10f73e4826e5ce40c092816900bcc502a [2020-11-29 18:47:50,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:47:50,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:47:50,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:47:50,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:47:50,432 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:47:50,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2020-11-29 18:47:50,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/data/bebce6718/9054d139ad3d4557a1b77673bd0515e6/FLAG910cd04ad [2020-11-29 18:47:50,998 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:47:50,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2020-11-29 18:47:51,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/data/bebce6718/9054d139ad3d4557a1b77673bd0515e6/FLAG910cd04ad [2020-11-29 18:47:51,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/data/bebce6718/9054d139ad3d4557a1b77673bd0515e6 [2020-11-29 18:47:51,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:47:51,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:47:51,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:51,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:47:51,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:47:51,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1afeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51, skipping insertion in model container [2020-11-29 18:47:51,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:47:51,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:51,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:51,638 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:47:51,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:51,695 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:47:51,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51 WrapperNode [2020-11-29 18:47:51,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:51,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:51,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:47:51,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:47:51,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:47:51,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:47:51,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:47:51,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:47:51,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... [2020-11-29 18:47:51,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:47:51,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:47:51,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:47:51,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:47:51,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/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 [2020-11-29 18:47:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:47:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:47:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:47:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:47:52,297 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:47:52,297 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:47:52,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:52 BoogieIcfgContainer [2020-11-29 18:47:52,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:47:52,301 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 18:47:52,301 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 18:47:52,314 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 18:47:52,314 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:52" (1/1) ... [2020-11-29 18:47:52,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:47:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2020-11-29 18:47:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-11-29 18:47:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:47:52,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:47:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 18:47:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2020-11-29 18:47:52,656 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-11-29 18:47:52,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:47:52,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 18:47:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:52,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:52,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:52,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:52,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:52,858 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-29 18:47:52,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 06:47:52 ImpRootNode [2020-11-29 18:47:52,903 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 18:47:52,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:47:52,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:47:52,905 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:47:52,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:52" (3/4) ... [2020-11-29 18:47:52,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:47:52,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ea9e910-3542-4183-a769-9e913c6f0029/bin/ukojak/witness.graphml [2020-11-29 18:47:52,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:47:52,992 INFO L168 Benchmark]: Toolchain (without parser) took 1611.40 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 64.3 MB in the end (delta: -7.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:52,993 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 73.3 MB in the beginning and 73.3 MB in the end (delta: 32.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:52,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.92 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 69.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:52,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.39 ms. Allocated memory is still 92.3 MB. Free memory was 69.7 MB in the beginning and 68.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:53,003 INFO L168 Benchmark]: Boogie Preprocessor took 26.52 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 67.2 MB in the end (delta: 997.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:53,006 INFO L168 Benchmark]: RCFGBuilder took 532.84 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 49.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:53,008 INFO L168 Benchmark]: CodeCheck took 602.46 ms. Allocated memory is still 92.3 MB. Free memory was 49.0 MB in the beginning and 66.0 MB in the end (delta: -17.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:53,008 INFO L168 Benchmark]: Witness Printer took 84.80 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 64.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:53,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x