./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/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_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/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_f6cc230a-db74-42d9-97a4-ead2def32838/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 a2f1dacf23e701c88af5ee644fdcccaa723983d694e8bd4147c38940002aa7b2 --- 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 18:02:15,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:02:15,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:02:15,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:02:15,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:02:15,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:02:15,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:02:15,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:02:15,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:02:15,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:02:15,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:02:15,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:02:15,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:02:15,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:02:15,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:02:15,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:02:15,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:02:15,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:02:15,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:02:15,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:02:15,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:02:15,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:02:15,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:02:15,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:02:15,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:02:15,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:02:15,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:02:15,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:02:15,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:02:15,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:02:15,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:02:15,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:02:15,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:02:15,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:02:15,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:02:15,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:02:15,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:02:15,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:02:15,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:02:15,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:02:15,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:02:15,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:02:15,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:02:15,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:02:15,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:02:15,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:02:15,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:02:15,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:02:15,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:02:15,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:02:15,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:02:15,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:02:15,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:02:15,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:02:15,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:02:15,999 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:02:15,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:02:16,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:02:16,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:02:16,000 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:02:16,000 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:02:16,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:02:16,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:02:16,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:02:16,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:02:16,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:02:16,001 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:02:16,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:02:16,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:02:16,002 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_f6cc230a-db74-42d9-97a4-ead2def32838/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f1dacf23e701c88af5ee644fdcccaa723983d694e8bd4147c38940002aa7b2 [2022-11-20 18:02:16,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:02:16,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:02:16,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:02:16,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:02:16,290 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:02:16,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-11-20 18:02:19,330 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:02:19,564 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:02:19,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-11-20 18:02:19,570 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/data/f5eda24b0/23be9dbae015492490fddf60ad8baa58/FLAG5603c05c9 [2022-11-20 18:02:19,588 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/data/f5eda24b0/23be9dbae015492490fddf60ad8baa58 [2022-11-20 18:02:19,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:02:19,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:02:19,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:02:19,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:02:19,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:02:19,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262720aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19, skipping insertion in model container [2022-11-20 18:02:19,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:02:19,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:02:19,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:02:19,805 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:02:19,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:02:19,837 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:02:19,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19 WrapperNode [2022-11-20 18:02:19,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:02:19,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:02:19,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:02:19,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:02:19,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,872 INFO L138 Inliner]: procedures = 12, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-11-20 18:02:19,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:02:19,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:02:19,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:02:19,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:02:19,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:02:19,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:02:19,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:02:19,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:02:19,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:02:19" (1/1) ... [2022-11-20 18:02:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:02:19,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:02:19,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:02:19,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:02:19,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 18:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-20 18:02:19,996 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-20 18:02:19,996 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-11-20 18:02:19,997 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-11-20 18:02:19,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:02:19,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:02:19,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:02:20,104 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:02:20,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:02:20,347 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:02:20,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:02:20,427 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:02:20,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:20 BoogieIcfgContainer [2022-11-20 18:02:20,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:02:20,437 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:02:20,437 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:02:20,456 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:02:20,457 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:20" (1/1) ... [2022-11-20 18:02:20,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:02:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:02:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 47 transitions. [2022-11-20 18:02:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-11-20 18:02:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:02:20,566 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:02:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:02:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:02:20,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:02:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:02:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:02:20,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:02:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:02:20,860 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-11-20 18:02:20,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:02:20 ImpRootNode [2022-11-20 18:02:20,890 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:02:20,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:02:20,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:02:20,895 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:02:20,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:02:20" (3/4) ... [2022-11-20 18:02:20,898 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:02:20,967 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:02:20,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:02:20,975 INFO L158 Benchmark]: Toolchain (without parser) took 1377.22ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 102.0MB in the beginning and 155.3MB in the end (delta: -53.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,976 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 146.8MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:02:20,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.62ms. Allocated memory is still 146.8MB. Free memory was 102.0MB in the beginning and 91.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.63ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 90.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,978 INFO L158 Benchmark]: Boogie Preprocessor took 24.67ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:02:20,978 INFO L158 Benchmark]: RCFGBuilder took 537.91ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 89.1MB in the beginning and 172.4MB in the end (delta: -83.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,979 INFO L158 Benchmark]: CodeCheck took 453.33ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 157.4MB in the end (delta: 14.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,980 INFO L158 Benchmark]: Witness Printer took 80.45ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 155.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:02:20,983 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 3 procedures, 40 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L69] int *p1 = malloc(sizeof(int)); [L70] int *p2 = malloc(sizeof(int)); [L73] *p1 = __VERIFIER_nondet_int() [L74] *p2 = __VERIFIER_nondet_int() [L76] EXPR \read(*p1) [L76] *p1 < 0 || *p2 < 0 [L76] EXPR \read(*p2) [L76] *p1 < 0 || *p2 < 0 VAL [*p1 < 0 || *p2 < 0=0, \read(*p1)=0, \read(*p2)=2147483647, p1={-1:0}, p2={282:0}] [L76] COND FALSE !(*p1 < 0 || *p2 < 0) [L79] EXPR \read(*p2) VAL [\read(*p2)=2147483647, p1={-1:0}, p2={282:0}] [L79] CALL f(p1,*p2) VAL [\old(v)=2147483647, q={-1:0}] [L17] COND FALSE !(v < 0) [L22] int *tmp = malloc(sizeof(int)); [L23] v+1 VAL [\old(v)=2147483647, q={-1:0}, q={-1:0}, tmp={283:0}, v=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 146.8MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.62ms. Allocated memory is still 146.8MB. Free memory was 102.0MB in the beginning and 91.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.63ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 90.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.67ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 537.91ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 89.1MB in the beginning and 172.4MB in the end (delta: -83.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * CodeCheck took 453.33ms. Allocated memory is still 203.4MB. Free memory was 172.3MB in the beginning and 157.4MB in the end (delta: 14.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 80.45ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 155.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 18:02:21,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6cc230a-db74-42d9-97a4-ead2def32838/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)