./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 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_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh --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 Taipan --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-2329fc7 [2022-12-14 08:53:50,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:53:50,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:53:50,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:53:50,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:53:50,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:53:50,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:53:50,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:53:50,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:53:50,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:53:50,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:53:50,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:53:50,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:53:50,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:53:50,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:53:50,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:53:50,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:53:50,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:53:50,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:53:50,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:53:50,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:53:50,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:53:50,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:53:50,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:53:50,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:53:50,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:53:50,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:53:50,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:53:50,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:53:50,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:53:50,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:53:50,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:53:50,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:53:50,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:53:50,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:53:50,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:53:50,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:53:50,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:53:50,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:53:50,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:53:50,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:53:50,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 08:53:50,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:53:50,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:53:50,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:53:50,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:53:50,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:53:50,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:53:50,124 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:53:50,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:53:50,125 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:53:50,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:53:50,125 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:53:50,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:53:50,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:53:50,126 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:53:50,126 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:53:50,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:53:50,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:53:50,127 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:53:50,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:53:50,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:53:50,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:53:50,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:53:50,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:53:50,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:53:50,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:53:50,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:53:50,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:53:50,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:53:50,130 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:53:50,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:53:50,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:53:50,131 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:53:50,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:53:50,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:53:50,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:53:50,131 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_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f1dacf23e701c88af5ee644fdcccaa723983d694e8bd4147c38940002aa7b2 [2022-12-14 08:53:50,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:53:50,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:53:50,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:53:50,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:53:50,371 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:53:50,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-12-14 08:53:52,885 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:53:53,039 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:53:53,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-12-14 08:53:53,044 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/data/696fb6210/ab8d79e84698482d8a4225b38152a5ab/FLAG2719a15ac [2022-12-14 08:53:53,462 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/data/696fb6210/ab8d79e84698482d8a4225b38152a5ab [2022-12-14 08:53:53,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:53:53,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:53:53,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:53:53,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:53:53,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:53:53,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1bc627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53, skipping insertion in model container [2022-12-14 08:53:53,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:53:53,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:53:53,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:53:53,607 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:53:53,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:53:53,629 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:53:53,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53 WrapperNode [2022-12-14 08:53:53,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:53:53,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:53:53,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:53:53,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:53:53,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,652 INFO L138 Inliner]: procedures = 12, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-12-14 08:53:53,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:53:53,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:53:53,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:53:53,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:53:53,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:53:53,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:53:53,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:53:53,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:53:53,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (1/1) ... [2022-12-14 08:53:53,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:53:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:53:53,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:53:53,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:53:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:53:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:53:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 08:53:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 08:53:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-12-14 08:53:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-12-14 08:53:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:53:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:53:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:53:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:53:53,799 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:53:53,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:53:53,989 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:53:54,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:53:54,014 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:53:54,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:53:54 BoogieIcfgContainer [2022-12-14 08:53:54,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:53:54,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:53:54,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:53:54,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:53:54,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:53:53" (1/3) ... [2022-12-14 08:53:54,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4855d418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:53:54, skipping insertion in model container [2022-12-14 08:53:54,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:53:53" (2/3) ... [2022-12-14 08:53:54,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4855d418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:53:54, skipping insertion in model container [2022-12-14 08:53:54,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:53:54" (3/3) ... [2022-12-14 08:53:54,022 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex5B.i [2022-12-14 08:53:54,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:53:54,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 08:53:54,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:53:54,083 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=FINITE_AUTOMATA, 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;@46bbe6ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:53:54,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 08:53:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 32 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 08:53:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:53:54,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:53:54,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:53:54,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-12-14 08:53:54,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:53:54,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1028979837, now seen corresponding path program 1 times [2022-12-14 08:53:54,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:53:54,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518612020] [2022-12-14 08:53:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:53:54,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:53:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:53:54,269 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 08:53:54,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:53:54,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518612020] [2022-12-14 08:53:54,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518612020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:53:54,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:53:54,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:53:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843439956] [2022-12-14 08:53:54,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:53:54,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:53:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:53:54,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:53:54,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:53:54,301 INFO L87 Difference]: Start difference. First operand has 40 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 32 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:53:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:53:54,352 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2022-12-14 08:53:54,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:53:54,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 08:53:54,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:53:54,363 INFO L225 Difference]: With dead ends: 66 [2022-12-14 08:53:54,363 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 08:53:54,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:53:54,368 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:53:54,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 54 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:53:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 08:53:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-12-14 08:53:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 08:53:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2022-12-14 08:53:54,399 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 6 [2022-12-14 08:53:54,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:53:54,399 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2022-12-14 08:53:54,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:53:54,400 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-12-14 08:53:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:53:54,400 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:53:54,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:53:54,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:53:54,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-12-14 08:53:54,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:53:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1833603837, now seen corresponding path program 1 times [2022-12-14 08:53:54,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:53:54,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133881347] [2022-12-14 08:53:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:53:54,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:53:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:53:54,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:53:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:53:54,489 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:53:54,489 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:53:54,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 08:53:54,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 08:53:54,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 08:53:54,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 08:53:54,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 08:53:54,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 08:53:54,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 08:53:54,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 08:53:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:53:54,499 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 08:53:54,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:53:54,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:53:54 BoogieIcfgContainer [2022-12-14 08:53:54,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:53:54,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:53:54,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:53:54,521 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:53:54,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:53:54" (3/4) ... [2022-12-14 08:53:54,523 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 08:53:54,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:53:54,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:53:54,551 INFO L158 Benchmark]: Toolchain (without parser) took 1083.38ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 79.3MB in the beginning and 107.5MB in the end (delta: -28.2MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-14 08:53:54,551 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 89.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:53:54,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.90ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 68.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:53:54,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.44ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 67.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:53:54,552 INFO L158 Benchmark]: Boogie Preprocessor took 16.48ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:53:54,553 INFO L158 Benchmark]: RCFGBuilder took 345.92ms. Allocated memory is still 113.2MB. Free memory was 66.1MB in the beginning and 49.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 08:53:54,553 INFO L158 Benchmark]: TraceAbstraction took 503.09ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 49.0MB in the beginning and 109.8MB in the end (delta: -60.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:53:54,553 INFO L158 Benchmark]: Witness Printer took 28.81ms. Allocated memory is still 163.6MB. Free memory was 109.8MB in the beginning and 107.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:53:54,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 89.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.90ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 68.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.44ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 67.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.48ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.92ms. Allocated memory is still 113.2MB. Free memory was 66.1MB in the beginning and 49.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 503.09ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 49.0MB in the beginning and 109.8MB in the end (delta: -60.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 28.81ms. Allocated memory is still 163.6MB. Free memory was 109.8MB in the beginning and 107.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 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={-2:0}, p2={-1:0}] [L76] COND FALSE !(*p1 < 0 || *p2 < 0) [L79] EXPR \read(*p2) VAL [\read(*p2)=2147483647, p1={-2:0}, p2={-1:0}] [L79] CALL f(p1,*p2) VAL [\old(v)=2147483647, q={-2:0}] [L17] COND FALSE !(v < 0) [L22] int *tmp = malloc(sizeof(int)); [L23] v+1 VAL [\old(v)=2147483647, q={-2:0}, q={-2:0}, tmp={-3:0}, v=2147483647] - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: 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, 40 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 34 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-12-14 08:53:54,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b71feae-403a-406e-a31e-fc9001a85a57/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)