./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL --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 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 06:34:33,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 06:34:33,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 06:34:33,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 06:34:33,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 06:34:33,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 06:34:33,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 06:34:33,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 06:34:33,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 06:34:33,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 06:34:33,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 06:34:33,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 06:34:33,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 06:34:33,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 06:34:33,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 06:34:33,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 06:34:33,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 06:34:33,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 06:34:33,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 06:34:33,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 06:34:33,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 06:34:33,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 06:34:33,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 06:34:33,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 06:34:33,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 06:34:33,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 06:34:33,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 06:34:33,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 06:34:33,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 06:34:33,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 06:34:33,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 06:34:33,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 06:34:33,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 06:34:33,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 06:34:33,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 06:34:33,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 06:34:33,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 06:34:33,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 06:34:33,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 06:34:33,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 06:34:33,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 06:34:33,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-25 06:34:33,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 06:34:33,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 06:34:33,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 06:34:33,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 06:34:33,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 06:34:33,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 06:34:33,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 06:34:33,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 06:34:33,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 06:34:33,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 06:34:33,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 06:34:33,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 06:34:33,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 06:34:33,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 06:34:33,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 06:34:33,337 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 06:34:33,338 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 06:34:33,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 06:34:33,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 06:34:33,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 06:34:33,339 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 06:34:33,339 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 06:34:33,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 06:34:33,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:34:33,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 06:34:33,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 06:34:33,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 06:34:33,340 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 06:34:33,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 06:34:33,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 06:34:33,343 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_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc [2021-11-25 06:34:33,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 06:34:33,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 06:34:33,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 06:34:33,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 06:34:33,634 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 06:34:33,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2021-11-25 06:34:33,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/data/cfc5982f2/9c08f77482954b2d80a1bb5961478cbe/FLAG226de6bf5 [2021-11-25 06:34:34,128 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 06:34:34,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2021-11-25 06:34:34,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/data/cfc5982f2/9c08f77482954b2d80a1bb5961478cbe/FLAG226de6bf5 [2021-11-25 06:34:34,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/data/cfc5982f2/9c08f77482954b2d80a1bb5961478cbe [2021-11-25 06:34:34,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 06:34:34,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 06:34:34,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 06:34:34,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 06:34:34,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 06:34:34,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630c4276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34, skipping insertion in model container [2021-11-25 06:34:34,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 06:34:34,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 06:34:34,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2021-11-25 06:34:34,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:34:34,739 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 06:34:34,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2021-11-25 06:34:34,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:34:34,770 INFO L208 MainTranslator]: Completed translation [2021-11-25 06:34:34,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34 WrapperNode [2021-11-25 06:34:34,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 06:34:34,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 06:34:34,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 06:34:34,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 06:34:34,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,804 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2021-11-25 06:34:34,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 06:34:34,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 06:34:34,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 06:34:34,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 06:34:34,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 06:34:34,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 06:34:34,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 06:34:34,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 06:34:34,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:34:34" (1/1) ... [2021-11-25 06:34:34,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:34:34,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 06:34:34,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 06:34:34,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 06:34:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 06:34:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 06:34:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 06:34:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 06:34:34,965 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 06:34:34,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 06:34:35,083 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 06:34:35,125 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 06:34:35,125 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 06:34:35,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:35 BoogieIcfgContainer [2021-11-25 06:34:35,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 06:34:35,129 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 06:34:35,129 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 06:34:35,140 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 06:34:35,140 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:35" (1/1) ... [2021-11-25 06:34:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 06:34:35,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:34:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2021-11-25 06:34:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-11-25 06:34:35,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 06:34:35,228 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:34:35,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:34:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:34:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:34:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:34:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2021-11-25 06:34:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-25 06:34:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 06:34:35,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:34:35,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:34:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 06:34:35,440 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 06:34:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 06:34:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 06:34:35,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 06:34:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 06:34:35,496 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-25 06:34:35,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 06:34:35 ImpRootNode [2021-11-25 06:34:35,523 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 06:34:35,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 06:34:35,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 06:34:35,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 06:34:35,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:34:35" (3/4) ... [2021-11-25 06:34:35,526 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 06:34:35,559 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 06:34:35,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 06:34:35,561 INFO L158 Benchmark]: Toolchain (without parser) took 1025.21ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 62.5MB in the end (delta: 24.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-25 06:34:35,561 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:34:35,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 92.9MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 06:34:35,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.47ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 91.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 06:34:35,564 INFO L158 Benchmark]: Boogie Preprocessor took 19.23ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 90.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:34:35,565 INFO L158 Benchmark]: RCFGBuilder took 302.83ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 80.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 06:34:35,566 INFO L158 Benchmark]: CodeCheck took 393.51ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 64.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 06:34:35,567 INFO L158 Benchmark]: Witness Printer took 36.42ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 62.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:34:35,573 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, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] ii-j VAL [i=-2147483648, ii-j=1, j=1, k=0] [L23] i-j VAL [i=-2147483648, ii-j=1, j=1, k=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 92.9MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.47ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 91.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.23ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 90.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.83ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 80.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 393.51ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 64.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 36.42ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 62.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 06:34:35,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a110eb8-3620-4378-99b6-3fd0c3e48c44/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)