./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5864ac90458653d62ec5af743c75ffe6f01a72df52f4dc88d993330cbbf93393 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:44:52,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:44:52,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:44:52,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:44:52,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:44:52,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:44:52,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:44:52,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:44:52,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:44:52,660 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:44:52,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:44:52,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:44:52,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:44:52,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:44:52,662 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:44:52,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:44:52,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:44:52,664 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:52,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:44:52,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:44:52,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:52,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:44:52,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:44:52,665 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:44:52,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:44:52,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:44:52,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:44:52,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:44:52,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:44:52,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:44:52,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:44:52,667 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5864ac90458653d62ec5af743c75ffe6f01a72df52f4dc88d993330cbbf93393 [2024-11-28 04:44:52,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:44:52,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:44:52,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:44:52,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:44:52,986 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:44:52,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i [2024-11-28 04:44:55,926 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/data/764d4c0e0/98acef81b0664795b89340ad9680014a/FLAGedcc5fe7d [2024-11-28 04:44:56,500 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:44:56,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i [2024-11-28 04:44:56,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/data/764d4c0e0/98acef81b0664795b89340ad9680014a/FLAGedcc5fe7d [2024-11-28 04:44:56,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/data/764d4c0e0/98acef81b0664795b89340ad9680014a [2024-11-28 04:44:56,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:44:56,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:44:56,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:56,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:44:56,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:44:56,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:56" (1/1) ... [2024-11-28 04:44:56,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6979c0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56, skipping insertion in model container [2024-11-28 04:44:56,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:56" (1/1) ... [2024-11-28 04:44:56,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:44:56,938 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[4494,4507] [2024-11-28 04:44:56,944 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[4554,4567] [2024-11-28 04:44:57,861 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,862 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,864 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,865 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,882 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,883 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,885 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,886 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,888 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,894 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:57,895 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,632 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[150691,150704] [2024-11-28 04:44:58,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:58,653 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:44:58,666 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[4494,4507] [2024-11-28 04:44:58,667 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[4554,4567] [2024-11-28 04:44:58,724 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,728 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,728 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,729 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,730 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,746 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,748 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,750 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,751 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,752 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,753 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,754 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,755 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:44:58,907 WARN L250 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_93307f06-03dd-48f8-bfa9-35d57e678780/sv-benchmarks/c/aws-c-common/aws_linked_list_next_harness_negated.i[150691,150704] [2024-11-28 04:44:58,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:44:59,144 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:44:59,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59 WrapperNode [2024-11-28 04:44:59,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:44:59,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:59,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:44:59,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:44:59,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,312 INFO L138 Inliner]: procedures = 668, calls = 1039, calls flagged for inlining = 51, calls inlined = 4, statements flattened = 56 [2024-11-28 04:44:59,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:44:59,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:44:59,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:44:59,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:44:59,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,357 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 6, 4]. 35 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 2 writes are split as follows [0, 0, 1, 1]. [2024-11-28 04:44:59,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,376 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:44:59,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:44:59,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:44:59,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:44:59,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (1/1) ... [2024-11-28 04:44:59,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:44:59,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:44:59,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:44:59,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:44:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:44:59,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:44:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:44:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-28 04:44:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-28 04:44:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:44:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:44:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:44:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:44:59,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:44:59,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:44:59,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:44:59,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:44:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:44:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:44:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:44:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:44:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-28 04:44:59,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-28 04:44:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:44:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:44:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:44:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:44:59,737 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:44:59,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:44:59,957 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-28 04:44:59,957 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:44:59,969 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:44:59,969 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:44:59,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:59 BoogieIcfgContainer [2024-11-28 04:44:59,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:44:59,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:44:59,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:44:59,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:44:59,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:44:56" (1/3) ... [2024-11-28 04:44:59,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39421c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:59, skipping insertion in model container [2024-11-28 04:44:59,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:59" (2/3) ... [2024-11-28 04:44:59,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39421c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:59, skipping insertion in model container [2024-11-28 04:44:59,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:59" (3/3) ... [2024-11-28 04:44:59,978 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_next_harness_negated.i [2024-11-28 04:44:59,995 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:44:59,996 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_next_harness_negated.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:45:00,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:00,070 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1e67b6f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:00,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:45:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.21875) internal successors, (39), 33 states have internal predecessors, (39), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:45:00,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:45:00,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:00,084 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:00,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:00,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash 401849526, now seen corresponding path program 1 times [2024-11-28 04:45:00,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:00,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288305454] [2024-11-28 04:45:00,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:00,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:45:00,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:00,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288305454] [2024-11-28 04:45:00,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288305454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:00,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:00,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:00,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416649044] [2024-11-28 04:45:00,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:00,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:45:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:00,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:45:00,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:45:00,541 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.21875) internal successors, (39), 33 states have internal predecessors, (39), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:45:00,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:00,569 INFO L93 Difference]: Finished difference Result 94 states and 124 transitions. [2024-11-28 04:45:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:45:00,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-28 04:45:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:00,578 INFO L225 Difference]: With dead ends: 94 [2024-11-28 04:45:00,578 INFO L226 Difference]: Without dead ends: 45 [2024-11-28 04:45:00,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:45:00,587 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:00,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:00,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-28 04:45:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-28 04:45:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:45:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2024-11-28 04:45:00,638 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 28 [2024-11-28 04:45:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:00,641 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2024-11-28 04:45:00,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:45:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2024-11-28 04:45:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:45:00,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:00,644 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:00,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:45:00,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:00,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:00,645 INFO L85 PathProgramCache]: Analyzing trace with hash -619218828, now seen corresponding path program 1 times [2024-11-28 04:45:00,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876355345] [2024-11-28 04:45:00,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:45:00,869 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:45:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:45:01,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:45:01,041 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:45:01,043 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:45:01,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:45:01,049 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:45:01,091 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:45:01,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:45:01 BoogieIcfgContainer [2024-11-28 04:45:01,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:45:01,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:45:01,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:45:01,099 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:45:01,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:59" (3/4) ... [2024-11-28 04:45:01,101 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 04:45:01,166 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-11-28 04:45:01,231 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:45:01,231 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:45:01,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:45:01,232 INFO L158 Benchmark]: Toolchain (without parser) took 4653.53ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 100.8MB in the beginning and 327.1MB in the end (delta: -226.3MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-28 04:45:01,233 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:01,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2564.00ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 100.8MB in the beginning and 49.4MB in the end (delta: 51.4MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2024-11-28 04:45:01,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.72ms. Allocated memory is still 151.0MB. Free memory was 49.4MB in the beginning and 101.3MB in the end (delta: -51.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-28 04:45:01,234 INFO L158 Benchmark]: Boogie Preprocessor took 84.03ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 98.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:01,234 INFO L158 Benchmark]: RCFGBuilder took 571.79ms. Allocated memory is still 151.0MB. Free memory was 98.1MB in the beginning and 78.3MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:45:01,235 INFO L158 Benchmark]: TraceAbstraction took 1126.72ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 77.5MB in the beginning and 333.6MB in the end (delta: -256.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:01,236 INFO L158 Benchmark]: Witness Printer took 132.95ms. Allocated memory is still 402.7MB. Free memory was 333.6MB in the beginning and 327.1MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:01,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2564.00ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 100.8MB in the beginning and 49.4MB in the end (delta: 51.4MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.72ms. Allocated memory is still 151.0MB. Free memory was 49.4MB in the beginning and 101.3MB in the end (delta: -51.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.03ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 98.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 571.79ms. Allocated memory is still 151.0MB. Free memory was 98.1MB in the beginning and 78.3MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1126.72ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 77.5MB in the beginning and 333.6MB in the end (delta: -256.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 132.95ms. Allocated memory is still 402.7MB. Free memory was 333.6MB in the beginning and 327.1MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. 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: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7328] static __thread int tl_last_error = 0; VAL [s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7361] CALL aws_linked_list_next_harness() [L7346] struct aws_linked_list_node node; [L7347] struct aws_linked_list_node after; [L7350] node.next = &after [L7351] after.prev = &node [L7354] CALL aws_linked_list_next(&node) [L4837] CALL, EXPR aws_linked_list_node_next_is_valid(node) VAL [\old(node)={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next [L4720] EXPR node->next [L4720] EXPR node && node->next VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next && node->next->prev == node VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next && node->next->prev == node [L4720] EXPR node->next [L4720] EXPR node->next->prev [L4720] EXPR node && node->next && node->next->prev == node VAL [\old(node)={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] return node && node->next && node->next->prev == node; [L4837] RET, EXPR aws_linked_list_node_next_is_valid(node) VAL [node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4837] CALL assume_abort_if_not((aws_linked_list_node_next_is_valid(node))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4837] RET assume_abort_if_not((aws_linked_list_node_next_is_valid(node))) VAL [node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4838] EXPR node->next [L4838] struct aws_linked_list_node *rval = node->next; [L4839] CALL, EXPR aws_linked_list_node_next_is_valid(node) VAL [\old(node)={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next [L4720] EXPR node->next [L4720] EXPR node && node->next VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next && node->next->prev == node VAL [\old(node)={7:0}, node={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] EXPR node && node->next && node->next->prev == node [L4720] EXPR node->next [L4720] EXPR node->next->prev [L4720] EXPR node && node->next && node->next->prev == node VAL [\old(node)={7:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4720] return node && node->next && node->next->prev == node; [L4839] RET, EXPR aws_linked_list_node_next_is_valid(node) VAL [node={7:0}, rval={9:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4839] CALL __VERIFIER_assert(!((aws_linked_list_node_next_is_valid(node)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] COND TRUE !cond VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] reach_error() VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 61 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 7/7 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:45:01,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93307f06-03dd-48f8-bfa9-35d57e678780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE