./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 856d94ec041b267732c8bce0716646085f61a9b9ff6e49843f730e0ad45cc451 --- 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-4e7fbc6 [2022-11-23 03:48:57,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:48:57,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:48:57,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:48:57,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:48:57,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:48:57,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:48:57,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:48:57,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:48:57,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:48:57,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:48:57,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:48:57,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:48:57,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:48:57,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:48:57,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:48:57,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:48:57,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:48:57,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:48:57,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:48:57,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:48:57,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:48:57,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:48:57,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:48:57,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:48:57,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:48:57,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:48:57,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:48:57,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:48:57,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:48:57,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:48:57,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:48:57,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:48:57,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:48:57,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:48:57,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:48:57,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:48:57,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:48:57,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:48:57,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:48:57,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:48:57,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:48:57,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:48:57,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:48:57,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:48:57,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:48:57,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:48:57,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:48:57,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:48:57,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:48:57,594 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:48:57,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:48:57,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:48:57,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:48:57,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:48:57,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:48:57,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:48:57,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:48:57,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:48:57,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:48:57,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:48:57,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:48:57,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:48:57,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:48:57,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:48:57,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:48:57,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:48:57,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:48:57,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:48:57,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:48:57,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:48:57,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:48:57,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:48:57,598 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:48:57,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:48:57,598 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856d94ec041b267732c8bce0716646085f61a9b9ff6e49843f730e0ad45cc451 [2022-11-23 03:48:57,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:48:57,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:48:57,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:48:57,880 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:48:57,880 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:48:57,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-11-23 03:49:00,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:49:01,159 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:49:01,159 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-11-23 03:49:01,166 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/data/a108fa158/f277fd3502fd4472abc772545371a3b3/FLAG0f91f8e35 [2022-11-23 03:49:01,184 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/data/a108fa158/f277fd3502fd4472abc772545371a3b3 [2022-11-23 03:49:01,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:49:01,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:49:01,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:49:01,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:49:01,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:49:01,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a67a0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01, skipping insertion in model container [2022-11-23 03:49:01,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:49:01,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:49:01,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:49:01,442 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:49:01,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:49:01,471 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:49:01,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01 WrapperNode [2022-11-23 03:49:01,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:49:01,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:49:01,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:49:01,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:49:01,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,506 INFO L138 Inliner]: procedures = 12, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-23 03:49:01,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:49:01,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:49:01,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:49:01,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:49:01,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:49:01,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:49:01,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:49:01,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:49:01,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (1/1) ... [2022-11-23 03:49:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:49:01,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:49:01,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:49:01,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:49:01,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:49:01,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:49:01,641 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-23 03:49:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-23 03:49:01,642 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-11-23 03:49:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-11-23 03:49:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:49:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:49:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:49:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:49:01,734 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:49:01,737 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:49:01,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:49:01,969 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:49:01,969 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:49:01,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:01 BoogieIcfgContainer [2022-11-23 03:49:01,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:49:01,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:49:01,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:49:01,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:49:01,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:49:01" (1/3) ... [2022-11-23 03:49:01,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c41b331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:01, skipping insertion in model container [2022-11-23 03:49:01,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:01" (2/3) ... [2022-11-23 03:49:01,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c41b331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:49:01, skipping insertion in model container [2022-11-23 03:49:01,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:01" (3/3) ... [2022-11-23 03:49:01,983 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex7B.i [2022-11-23 03:49:02,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:49:02,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 03:49:02,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:49:02,109 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6194bfd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:49:02,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 03:49:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 18 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:49:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:49:02,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:49:02,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:49:02,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:49:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:49:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash 45876219, now seen corresponding path program 1 times [2022-11-23 03:49:02,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:49:02,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280617274] [2022-11-23 03:49:02,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:49:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:49:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:49:02,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:49:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:49:02,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:49:02,435 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:49:02,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 03:49:02,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 03:49:02,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 03:49:02,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 03:49:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:49:02,450 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:49:02,456 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:49:02,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:49:02 BoogieIcfgContainer [2022-11-23 03:49:02,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:49:02,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:49:02,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:49:02,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:49:02,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:49:01" (3/4) ... [2022-11-23 03:49:02,495 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 03:49:02,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:49:02,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:49:02,527 INFO L158 Benchmark]: Toolchain (without parser) took 1335.68ms. Allocated memory is still 157.3MB. Free memory was 127.3MB in the beginning and 85.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,528 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:49:02,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.94ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 117.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.83ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:49:02,529 INFO L158 Benchmark]: Boogie Preprocessor took 30.41ms. Allocated memory is still 157.3MB. Free memory was 115.8MB in the beginning and 114.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,530 INFO L158 Benchmark]: RCFGBuilder took 435.27ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 103.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,531 INFO L158 Benchmark]: TraceAbstraction took 509.23ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 87.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,531 INFO L158 Benchmark]: Witness Printer took 40.55ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 85.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:49:02,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.94ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 117.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.83ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.41ms. Allocated memory is still 157.3MB. Free memory was 115.8MB in the beginning and 114.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.27ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 103.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 509.23ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 87.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 40.55ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 85.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: integer overflow possible integer overflow possible We found a FailurePath: [L37] int *p1 = malloc(sizeof(int)); [L38] int *p2 = malloc(sizeof(int)); [L40] *p1 = __VERIFIER_nondet_int() [L41] *p2 = __VERIFIER_nondet_int() [L43] CALL f(p1,p2) VAL [#in~p={-3:0}, #in~q={-2:0}] [L13] EXPR \read(*p) [L13] EXPR \read(*q) VAL [#in~p={-3:0}, #in~q={-2:0}, \read(*p)=-2147483648, \read(*q)=-1, p={-3:0}, q={-2:0}] [L13] *p + *q VAL [#in~p={-3:0}, #in~q={-2:0}, \read(*p)=-2147483648, \read(*q)=-1, p={-3:0}, q={-2:0}] - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 03:49:02,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b324990-c598-414f-a37f-2df16bff772d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)