./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 6b4ec56b 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_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/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_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/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_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/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 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-6b4ec56 [2022-11-20 17:09:35,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:09:35,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:09:35,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:09:35,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:09:35,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:09:35,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:09:35,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:09:35,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:09:35,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:09:35,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:09:35,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:09:35,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:09:35,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:09:35,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:09:35,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:09:35,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:09:35,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:09:35,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:09:35,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:09:35,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:09:35,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:09:35,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:09:35,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:09:35,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:09:35,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:09:35,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:09:35,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:09:35,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:09:35,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:09:35,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:09:35,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:09:35,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:09:35,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:09:35,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:09:35,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:09:35,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:09:35,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:09:35,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:09:35,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:09:35,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:09:35,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:09:35,196 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:09:35,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:09:35,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:09:35,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:09:35,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:09:35,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:09:35,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:09:35,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:09:35,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:09:35,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:09:35,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:09:35,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:09:35,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:09:35,203 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:09:35,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:09:35,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:09:35,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:09:35,204 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:09:35,204 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:09:35,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:09:35,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:09:35,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:09:35,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:09:35,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:09:35,205 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:09:35,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:09:35,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:09:35,206 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_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2022-11-20 17:09:35,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:09:35,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:09:35,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:09:35,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:09:35,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:09:35,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2022-11-20 17:09:38,624 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:09:38,861 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:09:38,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2022-11-20 17:09:38,869 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/data/b20dcd29f/21e581882e324701b88868e8e8b15205/FLAG27d5b89ab [2022-11-20 17:09:38,884 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/data/b20dcd29f/21e581882e324701b88868e8e8b15205 [2022-11-20 17:09:38,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:09:38,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:09:38,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:09:38,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:09:38,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:09:38,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:09:38" (1/1) ... [2022-11-20 17:09:38,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dffb317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:38, skipping insertion in model container [2022-11-20 17:09:38,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:09:38" (1/1) ... [2022-11-20 17:09:38,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:09:38,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:09:39,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:09:39,118 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:09:39,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:09:39,175 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:09:39,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39 WrapperNode [2022-11-20 17:09:39,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:09:39,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:09:39,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:09:39,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:09:39,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,230 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-11-20 17:09:39,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:09:39,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:09:39,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:09:39,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:09:39,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:09:39,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:09:39,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:09:39,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:09:39,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:09:39,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:09:39,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:09:39,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:09:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 17:09:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-11-20 17:09:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-11-20 17:09:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 17:09:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:09:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 17:09:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:09:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:09:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:09:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:09:39,504 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:09:39,507 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:09:39,878 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:09:39,896 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:09:39,897 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:09:39,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:39 BoogieIcfgContainer [2022-11-20 17:09:39,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:09:39,901 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:09:39,901 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:09:39,912 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:09:39,912 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:39" (1/1) ... [2022-11-20 17:09:39,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:09:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:09:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2022-11-20 17:09:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-20 17:09:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:09:40,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:09:40,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:09:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:09:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:09:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:09:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 22 transitions. [2022-11-20 17:09:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-20 17:09:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:09:41,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:09:41,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:09:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:09:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:09:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:09:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 28 transitions. [2022-11-20 17:09:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 17:09:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:09:43,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:09:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:09:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:09:43,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:09:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:09:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:09:44,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:09:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:09:44,590 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-11-20 17:09:44,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:09:44 ImpRootNode [2022-11-20 17:09:44,631 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:09:44,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:09:44,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:09:44,632 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:09:44,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:39" (3/4) ... [2022-11-20 17:09:44,638 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:09:44,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:09:44,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:09:44,729 INFO L158 Benchmark]: Toolchain (without parser) took 5840.23ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 91.6MB in the beginning and 121.6MB in the end (delta: -30.0MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,729 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 134.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:09:44,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.23ms. Allocated memory is still 134.2MB. Free memory was 91.6MB in the beginning and 81.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.70ms. Allocated memory is still 134.2MB. Free memory was 81.5MB in the beginning and 80.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:09:44,735 INFO L158 Benchmark]: Boogie Preprocessor took 46.95ms. Allocated memory is still 134.2MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,735 INFO L158 Benchmark]: RCFGBuilder took 618.69ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 78.3MB in the beginning and 139.2MB in the end (delta: -60.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,736 INFO L158 Benchmark]: CodeCheck took 4730.40ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 139.2MB in the beginning and 123.7MB in the end (delta: 15.5MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,737 INFO L158 Benchmark]: Witness Printer took 96.15ms. Allocated memory is still 205.5MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:09:44,739 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: 4.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 16 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 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={12800:0}, i=2147483646, p0={2147479549:0}, p1={2518:0}, p2={18544:0}, p3={-1:0}, upper=2147483647] [L59] CALL chunk(data) VAL [data={12800:0}] [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={12800:0}, data={12800:0}, p0={2147479549:0}, p1={2518:0}, p2={18544:0}, p3={-1:0}] [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={12800:0}] [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)=2147512825, data={12800:0}, data={12800:0}, p0={2147479549:0}, p1={2147479550:0}, p2={2147479550:0}, p3={2147479550:0}] [L14] COND FALSE !(*p0 >= *p3) [L17] EXPR \read(*p0) [L17] (*p0)++ VAL [(*p0)++=2147483647, \read(*p0)=2147483647, data={12800:0}, data={12800:0}, p0={2147479549:0}, p1={2147479550:0}, p2={2147479550:0}, p3={2147479550:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 134.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.23ms. Allocated memory is still 134.2MB. Free memory was 91.6MB in the beginning and 81.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.70ms. Allocated memory is still 134.2MB. Free memory was 81.5MB in the beginning and 80.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.95ms. Allocated memory is still 134.2MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.69ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 78.3MB in the beginning and 139.2MB in the end (delta: -60.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * CodeCheck took 4730.40ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 139.2MB in the beginning and 123.7MB in the end (delta: 15.5MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Witness Printer took 96.15ms. Allocated memory is still 205.5MB. Free memory was 123.7MB in the beginning and 121.6MB 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 17:09:44,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d468e4-16e4-4c8d-870e-2e51eaacf55e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)