./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4 --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 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d --- 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-2329fc7 [2022-12-14 21:09:50,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:09:50,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:09:50,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:09:50,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:09:50,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:09:50,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:09:50,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:09:50,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:09:50,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:09:50,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:09:50,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:09:50,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:09:50,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:09:50,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:09:50,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:09:50,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:09:50,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:09:50,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:09:50,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:09:50,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:09:50,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:09:50,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:09:50,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:09:50,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:09:50,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:09:50,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:09:50,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:09:50,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:09:50,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:09:50,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:09:50,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:09:50,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:09:50,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:09:50,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:09:50,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:09:50,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:09:50,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:09:50,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:09:50,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:09:50,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:09:50,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 21:09:50,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:09:50,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:09:50,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:09:50,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:09:50,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:09:50,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:09:50,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:09:50,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:09:50,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:09:50,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:09:50,419 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:09:50,419 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:09:50,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:09:50,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:09:50,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:09:50,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:09:50,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:09:50,420 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:09:50,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:09:50,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:09:50,420 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_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2022-12-14 21:09:50,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:09:50,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:09:50,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:09:50,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:09:50,600 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:09:50,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2022-12-14 21:09:53,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:09:53,366 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:09:53,366 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2022-12-14 21:09:53,370 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/data/5251769ec/20091180980344dbb701e97037e95e9a/FLAGcbf142093 [2022-12-14 21:09:53,381 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/data/5251769ec/20091180980344dbb701e97037e95e9a [2022-12-14 21:09:53,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:09:53,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:09:53,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:09:53,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:09:53,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:09:53,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152094c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53, skipping insertion in model container [2022-12-14 21:09:53,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:09:53,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:09:53,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:09:53,568 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:09:53,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:09:53,598 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:09:53,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53 WrapperNode [2022-12-14 21:09:53,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:09:53,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:09:53,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:09:53,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:09:53,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,630 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-12-14 21:09:53,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:09:53,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:09:53,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:09:53,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:09:53,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:09:53,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:09:53,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:09:53,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:09:53,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:53" (1/1) ... [2022-12-14 21:09:53,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:09:53,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:09:53,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:09:53,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-12-14 21:09:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 21:09:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:09:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:09:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 21:09:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 21:09:53,796 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:09:53,798 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:09:53,995 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:09:54,006 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:09:54,007 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 21:09:54,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:54 BoogieIcfgContainer [2022-12-14 21:09:54,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:09:54,009 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:09:54,009 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:09:54,016 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:09:54,016 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:54" (1/1) ... [2022-12-14 21:09:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:09:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:09:54,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2022-12-14 21:09:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 21:09:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 21:09:54,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:09:54,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:09:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:09:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:09:55,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:09:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 23 transitions. [2022-12-14 21:09:55,044 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-12-14 21:09:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 21:09:55,044 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:09:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:09:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:09:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:09:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:09:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 28 transitions. [2022-12-14 21:09:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 21:09:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 21:09:56,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:09:56,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:09:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:09:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:09:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:09:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 39 transitions. [2022-12-14 21:09:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-12-14 21:09:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 21:09:58,368 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:09:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:09:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:09:58,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:09:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:09:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:09:58,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:09:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:09:59,061 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-12-14 21:09:59,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:09:59 ImpRootNode [2022-12-14 21:09:59,081 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:09:59,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:09:59,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:09:59,082 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:09:59,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:54" (3/4) ... [2022-12-14 21:09:59,083 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 21:09:59,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:09:59,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:09:59,117 INFO L158 Benchmark]: Toolchain (without parser) took 5732.34ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 130.9MB in the beginning and 63.5MB in the end (delta: 67.4MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,117 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:09:59,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.02ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 120.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.23ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 119.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,118 INFO L158 Benchmark]: Boogie Preprocessor took 23.23ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,119 INFO L158 Benchmark]: RCFGBuilder took 354.16ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 100.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,119 INFO L158 Benchmark]: CodeCheck took 5071.77ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 99.6MB in the beginning and 65.6MB in the end (delta: 34.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,120 INFO L158 Benchmark]: Witness Printer took 34.88ms. Allocated memory is still 201.3MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:09:59,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 32 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L32] int **data = malloc(4*sizeof(int*)); [L35] int *p0 = malloc(sizeof(int)); [L36] int *p1 = malloc(sizeof(int)); [L37] int *p2 = malloc(sizeof(int)); [L38] int *p3 = malloc(sizeof(int)); [L41] int i = __VERIFIER_nondet_int(); [L42] int upper = __VERIFIER_nondet_int(); [L44] COND FALSE !(i >= upper) [L47] *p0 = i [L48] *p3 = upper [L52] data[0] = p0 [L53] data[1] = p1 [L54] data[2] = p2 [L55] data[3] = p3 VAL [data={-1:0}, i=2147483646, p0={2147483644:0}, p1={2147483645:0}, p2={2147495521:0}, p3={2147495520:0}, upper=2147483647] [L59] CALL chunk(data) VAL [data={-1:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [\read(*p0)=2147483646, \read(*p3)=2147483647, data={-1:0}, data={-1:0}, p0={2147483644:0}, p1={2147483645:0}, p2={2147495521:0}, p3={2147495520:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ [L19] EXPR \read(*p3) [L19] *p2 = *p3 [L21] data[1] = malloc(sizeof(int*)) [L22] EXPR data[1] [L22] data[2] = data[1] [L23] EXPR data[2] [L23] data[3] = data[2] [L25] CALL chunk(data) VAL [data={-1:0}] [L9] EXPR data[0] [L9] int *p0 = data[0]; [L10] EXPR data[1] [L10] int *p1 = data[1]; [L11] EXPR data[2] [L11] int *p2 = data[2]; [L12] EXPR data[3] [L12] int *p3 = data[3]; [L14] EXPR \read(*p0) [L14] EXPR \read(*p3) VAL [\read(*p0)=2147483647, \read(*p3)=2147511525, data={-1:0}, data={-1:0}, p0={2147483644:0}, p1={2147495519:0}, p2={2147495519:0}, p3={2147495519:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ VAL [(*p0)++=2147483647, \read(*p0)=2147483647, data={-1:0}, data={-1:0}, p0={2147483644:0}, p1={2147495519:0}, p2={2147495519:0}, p3={2147495519:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.02ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 120.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.23ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 119.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.23ms. Allocated memory is still 167.8MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.16ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 100.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5071.77ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 99.6MB in the beginning and 65.6MB in the end (delta: 34.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Witness Printer took 34.88ms. Allocated memory is still 201.3MB. Free memory was 65.6MB in the beginning and 63.5MB 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! [2022-12-14 21:09:59,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b17d56-b311-48e1-bb42-1dcd0de8143c/bin/ukojak-rkRKPMF4O4/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)