./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_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_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dfb764aa006e9b5f466bb95da84bbd3a91cb858f0f02cfd38405f6ba2daf69c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:13:17,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:13:17,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 02:13:17,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:13:17,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:13:18,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:13:18,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:13:18,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:13:18,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:13:18,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:13:18,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:13:18,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:13:18,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:13:18,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:13:18,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:13:18,013 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:13:18,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:13:18,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:13:18,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:13:18,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:13:18,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:13:18,014 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:13:18,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:13:18,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b 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 -> Kojak 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 -> dfb764aa006e9b5f466bb95da84bbd3a91cb858f0f02cfd38405f6ba2daf69c6 [2024-12-06 02:13:18,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:13:18,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:13:18,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:13:18,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:13:18,246 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:13:18,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2024-12-06 02:13:20,829 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/data/e76e858ae/ace96621f2764a62a834e08ef1a7af76/FLAG70e8686c8 [2024-12-06 02:13:21,188 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:13:21,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2024-12-06 02:13:21,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/data/e76e858ae/ace96621f2764a62a834e08ef1a7af76/FLAG70e8686c8 [2024-12-06 02:13:21,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/data/e76e858ae/ace96621f2764a62a834e08ef1a7af76 [2024-12-06 02:13:21,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:13:21,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:13:21,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:13:21,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:13:21,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:13:21,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:13:21" (1/1) ... [2024-12-06 02:13:21,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f24274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:21, skipping insertion in model container [2024-12-06 02:13:21,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:13:21" (1/1) ... [2024-12-06 02:13:21,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:13:21,659 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2024-12-06 02:13:21,664 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2024-12-06 02:13:22,247 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,248 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,248 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,249 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,250 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,264 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,265 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,266 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,267 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,268 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,268 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,269 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,269 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,693 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[150695,150708] [2024-12-06 02:13:22,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:13:22,709 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:13:22,722 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2024-12-06 02:13:22,722 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2024-12-06 02:13:22,781 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,791 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,791 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,792 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,793 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,795 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-06 02:13:22,874 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_6b61d396-d6d0-4351-9755-def05ad9b4e9/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[150695,150708] [2024-12-06 02:13:22,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:13:23,039 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:13:23,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23 WrapperNode [2024-12-06 02:13:23,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:13:23,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:13:23,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:13:23,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:13:23,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,103 INFO L138 Inliner]: procedures = 668, calls = 1039, calls flagged for inlining = 51, calls inlined = 4, statements flattened = 56 [2024-12-06 02:13:23,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:13:23,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:13:23,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:13:23,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:13:23,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:13:23,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:13:23,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:13:23,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:13:23,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:13:23,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:13:23,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:13:23,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:13:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:13:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-12-06 02:13:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:13:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 02:13:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-06 02:13:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-12-06 02:13:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-12-06 02:13:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:13:23,358 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:13:23,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:13:23,502 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-12-06 02:13:23,502 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:13:23,585 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:13:23,585 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 02:13:23,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:13:23 BoogieIcfgContainer [2024-12-06 02:13:23,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:13:23,586 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:13:23,586 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:13:23,595 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:13:23,595 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:13:23" (1/1) ... [2024-12-06 02:13:23,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:13:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:13:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2024-12-06 02:13:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-12-06 02:13:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 02:13:23,654 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:13:23,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:13:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:13:23,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:13:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:13:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:13:24,056 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:13:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:13:24,102 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 02:13:24,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:13:24 ImpRootNode [2024-12-06 02:13:24,127 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:13:24,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:13:24,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:13:24,128 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:13:24,128 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:13:23" (3/4) ... [2024-12-06 02:13:24,129 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 02:13:24,168 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-12-06 02:13:24,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:13:24,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:13:24,208 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:13:24,209 INFO L158 Benchmark]: Toolchain (without parser) took 2793.08ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 86.6MB in the beginning and 110.1MB in the end (delta: -23.5MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,209 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:13:24,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1623.23ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 59.8MB in the end (delta: 26.8MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 55.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,210 INFO L158 Benchmark]: Boogie Preprocessor took 28.76ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:13:24,211 INFO L158 Benchmark]: RCFGBuilder took 452.23ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 53.2MB in the beginning and 157.1MB in the end (delta: -103.9MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,211 INFO L158 Benchmark]: CodeCheck took 540.85ms. Allocated memory is still 209.7MB. Free memory was 157.1MB in the beginning and 116.2MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,211 INFO L158 Benchmark]: Witness Printer took 80.88ms. Allocated memory is still 209.7MB. Free memory was 115.6MB in the beginning and 110.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:13:24,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available - 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, }; [L7328] static __thread int tl_last_error = 0; [L7361] CALL aws_linked_list_prev_harness() [L7346] struct aws_linked_list_node node; [L7347] struct aws_linked_list_node before; [L7350] node.prev = &before [L7351] before.next = &node [L7354] CALL aws_linked_list_prev(&node) [L4849] CALL, EXPR aws_linked_list_node_prev_is_valid(node) VAL [\old(node)={24172:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4731] EXPR node && node->prev [L4731] EXPR node->prev [L4731] EXPR node && node->prev [L4731] EXPR node && node->prev && node->prev->next == node [L4731] EXPR node->prev [L4731] EXPR node->prev->next [L4731] EXPR node && node->prev && node->prev->next == node [L4731] return node && node->prev && node->prev->next == node; [L4849] RET, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={24172:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4849] CALL assume_abort_if_not((aws_linked_list_node_prev_is_valid(node))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) [L4849] RET assume_abort_if_not((aws_linked_list_node_prev_is_valid(node))) VAL [node={24172:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4850] EXPR node->prev [L4850] struct aws_linked_list_node *rval = node->prev; [L4851] CALL, EXPR aws_linked_list_node_prev_is_valid(node) VAL [\old(node)={24172:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4731] EXPR node && node->prev [L4731] EXPR node->prev [L4731] EXPR node && node->prev [L4731] EXPR node && node->prev && node->prev->next == node [L4731] EXPR node->prev [L4731] EXPR node->prev->next [L4731] EXPR node && node->prev && node->prev->next == node [L4731] return node && node->prev && node->prev->next == node; [L4851] RET, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={24172:0}, rval={24171:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4851] CALL __VERIFIER_assert(!((aws_linked_list_node_prev_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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1623.23ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 59.8MB in the end (delta: 26.8MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 55.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.76ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 452.23ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 53.2MB in the beginning and 157.1MB in the end (delta: -103.9MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * CodeCheck took 540.85ms. Allocated memory is still 209.7MB. Free memory was 157.1MB in the beginning and 116.2MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 80.88ms. Allocated memory is still 209.7MB. Free memory was 115.6MB in the beginning and 110.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 02:13:24,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b61d396-d6d0-4351-9755-def05ad9b4e9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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