./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB --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 95643fe6222ef6bf06c5549a97aa2ed3c03be56764b1592b76d2122ae82e7069 --- 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-dbf71c6-m [2022-10-17 17:00:00,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:00:00,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:00:00,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:00:00,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:00:00,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:00:00,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:00:00,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:00:00,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:00:00,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:00:00,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:00:00,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:00:00,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:00:00,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:00:00,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:00:00,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:00:00,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:00:00,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:00:00,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:00:00,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:00:00,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:00:00,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:00:00,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:00:00,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:00:00,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:00:00,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:00:00,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:00:00,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:00:00,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:00:00,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:00:00,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:00:00,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:00:00,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:00:00,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:00:00,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:00:00,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:00:00,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:00:00,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:00:00,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:00:00,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:00:00,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:00:00,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:00:00,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:00:00,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:00:00,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:00:00,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:00:00,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:00:00,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:00:00,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:00:00,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:00:00,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:00:00,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:00:00,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:00:00,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:00:00,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:00:00,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:00:00,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:00:00,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:00:00,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:00:00,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:00:00,590 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:00:00,590 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:00:00,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:00:00,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:00,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:00:00,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:00:00,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:00:00,591 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:00:00,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:00:00,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:00:00,592 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95643fe6222ef6bf06c5549a97aa2ed3c03be56764b1592b76d2122ae82e7069 [2022-10-17 17:00:00,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:00:00,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:00:00,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:00:00,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:00:00,898 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:00:00,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2022-10-17 17:00:00,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/data/db96d2a8a/54388f414cd74eb5942df755e69c34a3/FLAGd4697e9b2 [2022-10-17 17:00:01,542 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:00:01,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i [2022-10-17 17:00:01,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/data/db96d2a8a/54388f414cd74eb5942df755e69c34a3/FLAGd4697e9b2 [2022-10-17 17:00:01,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/data/db96d2a8a/54388f414cd74eb5942df755e69c34a3 [2022-10-17 17:00:01,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:00:01,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:00:01,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:01,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:00:01,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:00:01,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:01" (1/1) ... [2022-10-17 17:00:01,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef437d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:01, skipping insertion in model container [2022-10-17 17:00:01,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:01" (1/1) ... [2022-10-17 17:00:01,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:00:02,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:00:02,360 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2022-10-17 17:00:02,367 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2022-10-17 17:00:02,370 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2022-10-17 17:00:02,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:02,391 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:00:02,457 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2022-10-17 17:00:02,471 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2022-10-17 17:00:02,473 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_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2022-10-17 17:00:02,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:02,501 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:00:02,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02 WrapperNode [2022-10-17 17:00:02,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:02,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:02,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:00:02,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:00:02,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,595 INFO L138 Inliner]: procedures = 119, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 112 [2022-10-17 17:00:02,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:02,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:00:02,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:00:02,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:00:02,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:00:02,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:00:02,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:00:02,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:00:02,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:02" (1/1) ... [2022-10-17 17:00:02,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:02,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:00:02,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:00:02,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:00:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:00:02,879 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:00:02,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:00:03,222 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:00:03,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:00:03,323 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-17 17:00:03,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:03 BoogieIcfgContainer [2022-10-17 17:00:03,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:00:03,327 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:00:03,327 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:00:03,357 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:00:03,357 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:03" (1/1) ... [2022-10-17 17:00:03,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:00:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2022-10-17 17:00:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2022-10-17 17:00:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:00:03,479 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 17:00:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 17:00:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:00:03,692 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2022-10-17 17:00:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2022-10-17 17:00:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:00:03,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:03,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2022-10-17 17:00:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-17 17:00:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:00:04,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:04,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2022-10-17 17:00:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-10-17 17:00:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:00:06,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:06,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:06,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:00:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:00:06,296 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-10-17 17:00:06,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:00:06 ImpRootNode [2022-10-17 17:00:06,340 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:00:06,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:00:06,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:00:06,341 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:00:06,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:03" (3/4) ... [2022-10-17 17:00:06,344 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:00:06,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:00:06,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:00:06,419 INFO L158 Benchmark]: Toolchain (without parser) took 4447.99ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 61.0MB in the beginning and 36.6MB in the end (delta: 24.4MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,420 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 58.9MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:06,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.26ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 54.8MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.67ms. Allocated memory is still 88.1MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,423 INFO L158 Benchmark]: Boogie Preprocessor took 56.21ms. Allocated memory is still 88.1MB. Free memory was 52.7MB in the beginning and 51.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:00:06,423 INFO L158 Benchmark]: RCFGBuilder took 673.23ms. Allocated memory is still 88.1MB. Free memory was 51.1MB in the beginning and 30.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,424 INFO L158 Benchmark]: CodeCheck took 3013.67ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 29.8MB in the beginning and 38.6MB in the end (delta: -8.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,425 INFO L158 Benchmark]: Witness Printer took 77.72ms. Allocated memory is still 111.1MB. Free memory was 38.6MB in the beginning and 36.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:00:06,430 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, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 42 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 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: 1049]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; VAL [end={25728:0}, list={25728:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list VAL [end={25728:0}, list={25728:0}] [L1038] COND FALSE !(!(((void*)0) != end)) VAL [end={25728:0}, list={25728:0}] [L1039] EXPR end->colour VAL [end={25728:0}, end->colour=1, list={25728:0}] [L1039] COND FALSE !(!(BLACK == end->colour)) [L1041] COND TRUE ((void*)0) != end [L1043] EXPR end->colour [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next VAL [end={25728:0}, end->next={22:21}, end->next={0:0}, end->next={23:20}, list={25728:0}] [L1049] COND TRUE !(end->next) [L1049] reach_error() VAL [end={25728:0}, end->next={22:21}, end->next={23:20}, list={25728:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 58.9MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.26ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 54.8MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.67ms. Allocated memory is still 88.1MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.21ms. Allocated memory is still 88.1MB. Free memory was 52.7MB in the beginning and 51.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 673.23ms. Allocated memory is still 88.1MB. Free memory was 51.1MB in the beginning and 30.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 3013.67ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 29.8MB in the beginning and 38.6MB in the end (delta: -8.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Witness Printer took 77.72ms. Allocated memory is still 111.1MB. Free memory was 38.6MB in the beginning and 36.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:00:06,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd1095-c9ea-446f-81cf-4c8504a1fac3/bin/ukojak-92XMlrwhuB/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