./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd9f812dd0592e9d2894b2831060b27794691dcfdafe5c5494c28350656b71ee --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:20:02,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:20:02,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:20:02,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:20:02,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:20:02,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:20:02,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:20:02,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:20:02,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:20:02,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:20:02,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:20:02,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:20:02,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:20:02,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:20:02,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:20:03,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:20:03,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:20:03,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:20:03,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:20:03,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:20:03,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:20:03,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:20:03,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:20:03,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:20:03,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:20:03,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:20:03,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:20:03,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:20:03,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:20:03,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:20:03,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:20:03,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:20:03,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:20:03,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:20:03,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:20:03,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:20:03,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:20:03,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:20:03,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:20:03,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:20:03,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:20:03,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:20:03,079 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:20:03,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:20:03,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:20:03,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:20:03,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:20:03,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:20:03,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:20:03,083 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:20:03,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:20:03,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:20:03,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:20:03,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:20:03,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:20:03,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:20:03,093 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:20:03,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:20:03,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:20:03,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:20:03,094 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:20:03,094 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:20:03,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:20:03,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:03,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:20:03,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:20:03,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:20:03,096 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:20:03,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:20:03,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:20:03,097 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_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9f812dd0592e9d2894b2831060b27794691dcfdafe5c5494c28350656b71ee [2021-11-23 01:20:03,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:20:03,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:20:03,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:20:03,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:20:03,385 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:20:03,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/forester-heap/dll-01-1.i [2021-11-23 01:20:03,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/data/cf31283e8/43ebd76a5b7a42c8bcdb0a5d43f023cc/FLAGa0f1a68f1 [2021-11-23 01:20:04,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:20:04,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i [2021-11-23 01:20:04,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/data/cf31283e8/43ebd76a5b7a42c8bcdb0a5d43f023cc/FLAGa0f1a68f1 [2021-11-23 01:20:04,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/data/cf31283e8/43ebd76a5b7a42c8bcdb0a5d43f023cc [2021-11-23 01:20:04,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:20:04,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:20:04,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:04,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:20:04,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:20:04,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:04,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62739d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04, skipping insertion in model container [2021-11-23 01:20:04,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:04,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:20:04,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:20:04,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22080,22093] [2021-11-23 01:20:04,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22353,22366] [2021-11-23 01:20:04,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22587,22600] [2021-11-23 01:20:04,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22657,22670] [2021-11-23 01:20:04,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22924,22937] [2021-11-23 01:20:04,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23032,23045] [2021-11-23 01:20:04,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23263,23276] [2021-11-23 01:20:04,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23343,23356] [2021-11-23 01:20:04,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23422,23435] [2021-11-23 01:20:04,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23512,23525] [2021-11-23 01:20:04,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23690,23703] [2021-11-23 01:20:04,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23768,23781] [2021-11-23 01:20:04,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23845,23858] [2021-11-23 01:20:04,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:04,781 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:20:04,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22080,22093] [2021-11-23 01:20:04,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22353,22366] [2021-11-23 01:20:04,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22587,22600] [2021-11-23 01:20:04,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22657,22670] [2021-11-23 01:20:04,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[22924,22937] [2021-11-23 01:20:04,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23032,23045] [2021-11-23 01:20:04,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23263,23276] [2021-11-23 01:20:04,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23343,23356] [2021-11-23 01:20:04,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23422,23435] [2021-11-23 01:20:04,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23512,23525] [2021-11-23 01:20:04,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23690,23703] [2021-11-23 01:20:04,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23768,23781] [2021-11-23 01:20:04,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/sv-benchmarks/c/forester-heap/dll-01-1.i[23845,23858] [2021-11-23 01:20:04,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:20:04,908 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:20:04,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04 WrapperNode [2021-11-23 01:20:04,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:20:04,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:04,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:20:04,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:20:04,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:04,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,030 INFO L137 Inliner]: procedures = 119, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 225 [2021-11-23 01:20:05,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:20:05,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:20:05,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:20:05,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:20:05,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:20:05,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:20:05,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:20:05,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:20:05,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:04" (1/1) ... [2021-11-23 01:20:05,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:20:05,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:20:05,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:20:05,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:20:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:20:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:20:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:20:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:20:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:20:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:20:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:20:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:20:05,363 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:20:05,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:20:05,813 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:20:05,889 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:20:05,889 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-23 01:20:05,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:05 BoogieIcfgContainer [2021-11-23 01:20:05,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:20:05,893 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:20:05,893 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:20:05,906 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:20:05,906 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:05" (1/1) ... [2021-11-23 01:20:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:20:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2021-11-23 01:20:05,988 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2021-11-23 01:20:05,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 01:20:05,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:05,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2021-11-23 01:20:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2021-11-23 01:20:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:20:06,251 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:06,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2021-11-23 01:20:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2021-11-23 01:20:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:20:06,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:06,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2021-11-23 01:20:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2021-11-23 01:20:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:20:06,483 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:06,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 70 states and 102 transitions. [2021-11-23 01:20:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 102 transitions. [2021-11-23 01:20:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:20:06,918 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:06,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2021-11-23 01:20:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2021-11-23 01:20:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:20:07,237 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:07,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2021-11-23 01:20:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2021-11-23 01:20:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:20:07,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:07,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:07,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:07,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2021-11-23 01:20:07,522 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-11-23 01:20:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:20:07,524 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:07,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2021-11-23 01:20:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2021-11-23 01:20:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:20:07,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:07,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 74 states and 100 transitions. [2021-11-23 01:20:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2021-11-23 01:20:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:20:07,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:07,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 72 states and 96 transitions. [2021-11-23 01:20:08,014 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2021-11-23 01:20:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:20:08,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:08,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:08,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:11,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 83 states and 112 transitions. [2021-11-23 01:20:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2021-11-23 01:20:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:20:11,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:11,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:20:11,360 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:20:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:20:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:20:11,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:20:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:20:11,637 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2021-11-23 01:20:11,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:20:11 ImpRootNode [2021-11-23 01:20:11,676 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:20:11,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:20:11,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:20:11,677 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:20:11,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:05" (3/4) ... [2021-11-23 01:20:11,679 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:20:11,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:20:11,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:20:11,812 INFO L158 Benchmark]: Toolchain (without parser) took 7478.39ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 77.9MB in the beginning and 131.0MB in the end (delta: -53.1MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,813 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:20:11,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.32ms. Allocated memory is still 111.1MB. Free memory was 77.6MB in the beginning and 76.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.91ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 73.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,816 INFO L158 Benchmark]: Boogie Preprocessor took 83.72ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,817 INFO L158 Benchmark]: RCFGBuilder took 776.67ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 71.7MB in the beginning and 103.8MB in the end (delta: -32.1MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,818 INFO L158 Benchmark]: CodeCheck took 5783.10ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 103.8MB in the beginning and 54.5MB in the end (delta: 49.3MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,819 INFO L158 Benchmark]: Witness Printer took 134.32ms. Allocated memory is still 161.5MB. Free memory was 54.5MB in the beginning and 131.0MB in the end (delta: -76.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:20:11,824 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 1 procedures, 74 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1032 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 521 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 724 IncrementalHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 217 mSolverCounterUnsat, 279 mSDtfsCounter, 724 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1066 GetRequests, 983 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1929 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 1036 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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: 1040]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) VAL [list={-1:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner={0:0}, list->inner={0:0}, list->inner={58:57}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={0:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={-1:0}, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={-1:0}, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1039] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] reach_error() VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.32ms. Allocated memory is still 111.1MB. Free memory was 77.6MB in the beginning and 76.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.91ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 73.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.72ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 776.67ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 71.7MB in the beginning and 103.8MB in the end (delta: -32.1MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * CodeCheck took 5783.10ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 103.8MB in the beginning and 54.5MB in the end (delta: 49.3MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Witness Printer took 134.32ms. Allocated memory is still 161.5MB. Free memory was 54.5MB in the beginning and 131.0MB in the end (delta: -76.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:20:11,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421d88d2-a5e0-4ca2-87e2-a111bca7e556/bin/ukojak-LBtLqBUTdQ/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