./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/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_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/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_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/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 97c126101f069ab488324cfc4632ee48c30de136646e991b84ddea84d63344d8 --- 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 19:04:34,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:04:34,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:04:34,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:04:34,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:04:34,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:04:34,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:04:34,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:04:34,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:04:34,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:04:34,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:04:34,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:04:34,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:04:34,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:04:34,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:04:34,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:04:34,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:04:34,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:04:34,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:04:34,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:04:34,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:04:34,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:04:34,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:04:34,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:04:34,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:04:34,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:04:34,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:04:34,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:04:34,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:04:34,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:04:34,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:04:34,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:04:34,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:04:34,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:04:34,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:04:34,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:04:34,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:04:34,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:04:34,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:04:34,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:04:34,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:04:34,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 19:04:34,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:04:34,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:04:34,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:04:34,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:04:34,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:04:34,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:04:34,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:04:34,325 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:04:34,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:04:34,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:04:34,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:04:34,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:04:34,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:04:34,326 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:04:34,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:04:34,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:04:34,326 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_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c126101f069ab488324cfc4632ee48c30de136646e991b84ddea84d63344d8 [2022-12-14 19:04:34,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:04:34,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:04:34,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:04:34,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:04:34,501 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:04:34,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex1.i [2022-12-14 19:04:37,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:04:37,167 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:04:37,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex1.i [2022-12-14 19:04:37,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/data/252480676/c05fddfc42a449f09630600cfd0a5420/FLAG9074a6282 [2022-12-14 19:04:37,552 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/data/252480676/c05fddfc42a449f09630600cfd0a5420 [2022-12-14 19:04:37,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:04:37,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:04:37,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:04:37,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:04:37,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:04:37,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e2839a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37, skipping insertion in model container [2022-12-14 19:04:37,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:04:37,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:04:37,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:04:37,686 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:04:37,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:04:37,706 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:04:37,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37 WrapperNode [2022-12-14 19:04:37,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:04:37,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:04:37,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:04:37,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:04:37,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,734 INFO L138 Inliner]: procedures = 11, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-12-14 19:04:37,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:04:37,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:04:37,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:04:37,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:04:37,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:04:37,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:04:37,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:04:37,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:04:37,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:37" (1/1) ... [2022-12-14 19:04:37,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:04:37,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:04:37,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:04:37,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:04:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:04:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-12-14 19:04:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-12-14 19:04:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 19:04:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:04:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:04:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 19:04:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:04:37,883 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:04:37,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:04:38,024 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:04:38,039 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:04:38,039 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 19:04:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:38 BoogieIcfgContainer [2022-12-14 19:04:38,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:04:38,042 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:04:38,042 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:04:38,049 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:04:38,050 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:38" (1/1) ... [2022-12-14 19:04:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:04:38,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2022-12-14 19:04:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-12-14 19:04:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:04:38,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:38,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:38,560 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 19:04:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2022-12-14 19:04:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2022-12-14 19:04:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:04:38,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:38,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:38,737 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 19:04:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-12-14 19:04:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-12-14 19:04:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 19:04:38,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:38,895 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 19:04:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2022-12-14 19:04:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-12-14 19:04:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 19:04:38,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:38,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:39,206 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 19:04:39,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2022-12-14 19:04:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2022-12-14 19:04:39,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 19:04:39,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:39,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:04:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:40,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2022-12-14 19:04:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2022-12-14 19:04:40,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 19:04:40,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:04:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 60 transitions. [2022-12-14 19:04:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2022-12-14 19:04:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 19:04:40,702 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:40,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:04:40,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:40,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 45 states and 62 transitions. [2022-12-14 19:04:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2022-12-14 19:04:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 19:04:40,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:40,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:04:41,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:04:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:04:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 51 states and 70 transitions. [2022-12-14 19:04:41,681 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-12-14 19:04:41,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 19:04:41,681 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:04:41,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:04:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 19:04:41,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 19:04:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 19:04:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 19:04:41,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 19:04:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 19:04:41,777 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2022-12-14 19:04:41,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:04:41 ImpRootNode [2022-12-14 19:04:41,797 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:04:41,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:04:41,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:04:41,798 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:04:41,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:38" (3/4) ... [2022-12-14 19:04:41,799 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 19:04:41,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:04:41,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:04:41,835 INFO L158 Benchmark]: Toolchain (without parser) took 4280.09ms. Allocated memory is still 146.8MB. Free memory was 116.9MB in the beginning and 54.5MB in the end (delta: 62.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,836 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:04:41,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.20ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 106.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.74ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,838 INFO L158 Benchmark]: Boogie Preprocessor took 20.39ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,838 INFO L158 Benchmark]: RCFGBuilder took 285.42ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 91.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,839 INFO L158 Benchmark]: CodeCheck took 3755.19ms. Allocated memory is still 146.8MB. Free memory was 91.7MB in the beginning and 56.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,839 INFO L158 Benchmark]: Witness Printer took 36.97ms. Allocated memory is still 146.8MB. Free memory was 56.6MB in the beginning and 54.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:04:41,843 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 242 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 782 IncrementalHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 242 mSolverCounterUnsat, 58 mSDtfsCounter, 782 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 742 GetRequests, 636 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3363 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 8/19 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: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int *pp = malloc(sizeof(int)); [L24] int *qq = malloc(sizeof(int)); [L26] *pp = __VERIFIER_nondet_int() [L27] *qq = __VERIFIER_nondet_int() [L28] EXPR \read(*qq) VAL [\read(*qq)=2, pp={-9247:0}, qq={-9249:0}] [L28] COND TRUE *qq > 1 [L29] EXPR \read(*qq) [L29] *pp = *qq [L30] *qq = -1 [L31] EXPR \read(*pp) VAL [\read(*pp)=2, pp={-9247:0}, qq={-9249:0}] [L31] CALL rec(pp,*pp) VAL [\old(i)=2, op={-9247:0}] [L9] COND FALSE !(i < 0) [L13] int *ip = malloc(sizeof(int)); [L14] *ip = __VERIFIER_nondet_int() [L16] EXPR i-1 VAL [\old(i)=2, i=2, ip={-9248:0}, op={-9247:0}, op={-9247:0}] [L16] CALL rec(ip,i-1) VAL [\old(i)=1, op={-9248:0}] [L9] COND FALSE !(i < 0) [L13] int *ip = malloc(sizeof(int)); [L14] *ip = __VERIFIER_nondet_int() [L16] EXPR i-1 VAL [\old(i)=1, i=1, ip={-9246:0}, op={-9248:0}, op={-9248:0}] [L16] CALL rec(ip,i-1) VAL [\old(i)=0, op={-9246:0}] [L9] COND FALSE !(i < 0) [L13] int *ip = malloc(sizeof(int)); [L14] *ip = __VERIFIER_nondet_int() [L16] EXPR i-1 VAL [\old(i)=0, i=0, ip={-9245:0}, op={-9246:0}, op={-9246:0}] [L16] CALL rec(ip,i-1) VAL [\old(i)=-1, op={-9245:0}] [L9] COND TRUE i < 0 [L10] EXPR \read(*op) [L10] (*op)-- VAL [(*op)--=-2147483648, \old(i)=-1, \read(*op)=-2147483648, i=-1, op={-9245:0}, op={-9245:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.20ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 106.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.74ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.39ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.42ms. Allocated memory is still 146.8MB. Free memory was 104.3MB in the beginning and 91.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3755.19ms. Allocated memory is still 146.8MB. Free memory was 91.7MB in the beginning and 56.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 36.97ms. Allocated memory is still 146.8MB. Free memory was 56.6MB in the beginning and 54.5MB 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 19:04:41,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23e7b3e5-c3d0-4469-b6a2-1fa4efa3798d/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)