./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/flag-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/flag-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ --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 abf4329ddc5f09eb293d69b4a141041b710b785b2b3f28194d7fc784d5a71533 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 16:46:06,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:46:06,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:46:06,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:46:06,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:46:06,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:46:06,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:46:06,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:46:06,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:46:06,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:46:06,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:46:06,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:46:06,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:46:07,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:46:07,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:46:07,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:46:07,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:46:07,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:46:07,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:46:07,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:46:07,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:46:07,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:46:07,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:46:07,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:46:07,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:46:07,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:46:07,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:46:07,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:46:07,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:46:07,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:46:07,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:46:07,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:46:07,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:46:07,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:46:07,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:46:07,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:46:07,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:46:07,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:46:07,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:46:07,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:46:07,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:46:07,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:46:07,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:46:07,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:46:07,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:46:07,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:46:07,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:46:07,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:46:07,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:46:07,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:46:07,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:46:07,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:46:07,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:46:07,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:46:07,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:46:07,095 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:46:07,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:46:07,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:46:07,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:46:07,096 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:46:07,096 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:46:07,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:46:07,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:46:07,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:46:07,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:46:07,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:46:07,097 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:46:07,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:46:07,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:46:07,098 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_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abf4329ddc5f09eb293d69b4a141041b710b785b2b3f28194d7fc784d5a71533 [2022-11-20 16:46:07,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:46:07,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:46:07,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:46:07,496 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:46:07,496 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:46:07,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/flag-alloca.i [2022-11-20 16:46:10,552 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:46:10,809 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:46:10,810 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/sv-benchmarks/c/termination-memory-alloca/flag-alloca.i [2022-11-20 16:46:10,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/data/a3e63109c/5b1ef9551ee543c6a050ce336a3f55bf/FLAGf20d39fab [2022-11-20 16:46:10,874 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/data/a3e63109c/5b1ef9551ee543c6a050ce336a3f55bf [2022-11-20 16:46:10,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:46:10,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:46:10,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:46:10,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:46:10,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:46:10,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:46:10" (1/1) ... [2022-11-20 16:46:10,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c95a91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:10, skipping insertion in model container [2022-11-20 16:46:10,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:46:10" (1/1) ... [2022-11-20 16:46:10,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:46:10,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:46:11,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:46:11,221 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:46:11,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:46:11,308 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:46:11,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11 WrapperNode [2022-11-20 16:46:11,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:46:11,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:46:11,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:46:11,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:46:11,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,360 INFO L138 Inliner]: procedures = 111, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 16:46:11,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:46:11,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:46:11,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:46:11,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:46:11,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:46:11,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:46:11,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:46:11,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:46:11,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:46:11,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:46:11,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:46:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:46:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:46:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:46:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:46:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:46:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:46:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:46:11,680 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:46:11,682 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:46:11,850 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:46:11,906 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:46:11,907 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 16:46:11,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:46:11 BoogieIcfgContainer [2022-11-20 16:46:11,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:46:11,911 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:46:11,911 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:46:11,923 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:46:11,923 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:46:11" (1/1) ... [2022-11-20 16:46:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:46:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:46:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2022-11-20 16:46:11,989 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 16:46:11,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 16:46:11,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:46:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:46:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:46:12,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:46:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:46:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:46:12,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:46:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:46:12,463 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-11-20 16:46:12,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:46:12 ImpRootNode [2022-11-20 16:46:12,505 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:46:12,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:46:12,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:46:12,510 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:46:12,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:46:11" (3/4) ... [2022-11-20 16:46:12,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 16:46:12,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 16:46:12,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:46:12,559 INFO L158 Benchmark]: Toolchain (without parser) took 1681.38ms. Allocated memory is still 195.0MB. Free memory was 166.2MB in the beginning and 109.9MB in the end (delta: 56.3MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,559 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 123.7MB. Free memory was 91.1MB in the beginning and 91.0MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:46:12,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.76ms. Allocated memory is still 195.0MB. Free memory was 166.0MB in the beginning and 150.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.96ms. Allocated memory is still 195.0MB. Free memory was 150.1MB in the beginning and 148.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,561 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 147.1MB in the end (delta: 918.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:46:12,562 INFO L158 Benchmark]: RCFGBuilder took 501.38ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 133.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,563 INFO L158 Benchmark]: CodeCheck took 594.00ms. Allocated memory is still 195.0MB. Free memory was 132.6MB in the beginning and 112.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,563 INFO L158 Benchmark]: Witness Printer took 48.98ms. Allocated memory is still 195.0MB. Free memory was 112.0MB in the beginning and 109.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:46:12,567 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , 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, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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: 558]: integer overflow possible integer overflow possible We found a FailurePath: [L564] CALL f(__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) [L549] int* x_ref = __builtin_alloca (sizeof(int)); [L550] int* y_ref = __builtin_alloca (sizeof(int)); [L551] int* flag = __builtin_alloca (sizeof(int)); [L552] int* c = __builtin_alloca (sizeof(int)); [L553] *x_ref = x [L554] *y_ref = y [L555] *flag = 1 [L556] *c = 0 VAL [\old(x)=2147483647, \old(y)=2, __builtin_alloca (sizeof(int))={30616:0}, __builtin_alloca (sizeof(int))={30614:0}, __builtin_alloca (sizeof(int))={30617:0}, __builtin_alloca (sizeof(int))={30615:0}, c={30614:0}, flag={30615:0}, x=2147483647, x_ref={30617:0}, y=2, y_ref={30616:0}] [L557] EXPR \read(*flag) VAL [\old(x)=2147483647, \old(y)=2, \read(*flag)=1, __builtin_alloca (sizeof(int))={30616:0}, __builtin_alloca (sizeof(int))={30614:0}, __builtin_alloca (sizeof(int))={30617:0}, __builtin_alloca (sizeof(int))={30615:0}, c={30614:0}, flag={30615:0}, x=2147483647, x_ref={30617:0}, y=2, y_ref={30616:0}] [L557] COND TRUE *flag [L558] EXPR \read(*x_ref) [L558] (*x_ref)++ VAL [(*x_ref)++=2147483647, \old(x)=2147483647, \old(y)=2, \read(*x_ref)=2147483647, __builtin_alloca (sizeof(int))={30616:0}, __builtin_alloca (sizeof(int))={30614:0}, __builtin_alloca (sizeof(int))={30617:0}, __builtin_alloca (sizeof(int))={30615:0}, c={30614:0}, flag={30615:0}, x=2147483647, x_ref={30617:0}, y=2, y_ref={30616:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 123.7MB. Free memory was 91.1MB in the beginning and 91.0MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.76ms. Allocated memory is still 195.0MB. Free memory was 166.0MB in the beginning and 150.1MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.96ms. Allocated memory is still 195.0MB. Free memory was 150.1MB in the beginning and 148.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.38ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 147.1MB in the end (delta: 918.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.38ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 133.0MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 594.00ms. Allocated memory is still 195.0MB. Free memory was 132.6MB in the beginning and 112.0MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 48.98ms. Allocated memory is still 195.0MB. Free memory was 112.0MB in the beginning and 109.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 16:46:12,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30740d75-3547-4623-a99d-794c9cdb2523/bin/ukojak-pZX7IvK2PQ/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)