./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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3 --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 [2024-11-25 04:06:12,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:06:12,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-25 04:06:12,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:06:12,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:06:12,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:06:12,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:06:12,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:06:12,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:06:12,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:06:12,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:06:12,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:06:12,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:06:12,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:06:12,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:06:12,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:06:12,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:06:12,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:06:12,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:06:12,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:06:12,980 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:06:12,980 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:06:12,981 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:06:12,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:06:12,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:06:12,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:06:12,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:06:12,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:06:12,982 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:06:12,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:06:12,982 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3 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 [2024-11-25 04:06:13,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:06:13,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:06:13,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:06:13,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:06:13,417 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:06:13,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2024-11-25 04:06:17,161 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/data/e4ebd2617/30b4f3dd71fa44ff811a45c91d735735/FLAG7b1cdf383 [2024-11-25 04:06:17,851 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:06:17,852 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2024-11-25 04:06:17,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/data/e4ebd2617/30b4f3dd71fa44ff811a45c91d735735/FLAG7b1cdf383 [2024-11-25 04:06:17,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/data/e4ebd2617/30b4f3dd71fa44ff811a45c91d735735 [2024-11-25 04:06:17,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:06:17,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:06:17,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:06:17,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:06:17,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:06:17,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:06:17" (1/1) ... [2024-11-25 04:06:17,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c89a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:17, skipping insertion in model container [2024-11-25 04:06:17,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:06:17" (1/1) ... [2024-11-25 04:06:18,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:06:18,393 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2024-11-25 04:06:18,402 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2024-11-25 04:06:19,492 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,493 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,494 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,495 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,496 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,530 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,530 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,533 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,534 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,537 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,538 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,539 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:19,540 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,383 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[150695,150708] [2024-11-25 04:06:20,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:06:20,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:06:20,430 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2024-11-25 04:06:20,430 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2024-11-25 04:06:20,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,536 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,536 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,540 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,542 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,553 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,554 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,555 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,556 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,557 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,558 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,559 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,559 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-25 04:06:20,740 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_cb93e52b-42bc-4f76-8333-a53dc6736a0a/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[150695,150708] [2024-11-25 04:06:20,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:06:20,991 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:06:20,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20 WrapperNode [2024-11-25 04:06:20,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:06:20,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:06:20,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:06:20,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:06:20,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,134 INFO L138 Inliner]: procedures = 668, calls = 1039, calls flagged for inlining = 51, calls inlined = 4, statements flattened = 56 [2024-11-25 04:06:21,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:06:21,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:06:21,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:06:21,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:06:21,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:06:21,213 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:06:21,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:06:21,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:06:21,214 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:06:20" (1/1) ... [2024-11-25 04:06:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:06:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:06:21,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:06:21,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:06:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:06:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 04:06:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 04:06:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-25 04:06:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-25 04:06:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:06:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 04:06:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:06:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 04:06:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-25 04:06:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-25 04:06:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:06:21,627 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:06:21,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:06:21,881 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-25 04:06:21,885 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:06:22,069 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:06:22,070 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:06:22,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:06:22 BoogieIcfgContainer [2024-11-25 04:06:22,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:06:22,071 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:06:22,071 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:06:22,086 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:06:22,086 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:06:22" (1/1) ... [2024-11-25 04:06:22,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:06:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:06:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2024-11-25 04:06:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-11-25 04:06:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 04:06:22,164 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:06:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:06:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:06:22,669 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:06:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:06:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:06:23,025 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:06:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:06:23,115 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:06:23,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:06:23 ImpRootNode [2024-11-25 04:06:23,161 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:06:23,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:06:23,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:06:23,163 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:06:23,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:06:22" (3/4) ... [2024-11-25 04:06:23,165 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 04:06:23,242 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-11-25 04:06:23,325 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:06:23,326 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:06:23,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:06:23,327 INFO L158 Benchmark]: Toolchain (without parser) took 5388.35ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 112.6MB in the beginning and 297.2MB in the end (delta: -184.6MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,327 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:06:23,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3051.90ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 112.6MB in the beginning and 380.0MB in the end (delta: -267.4MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.19ms. Allocated memory is still 427.8MB. Free memory was 380.0MB in the beginning and 374.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,329 INFO L158 Benchmark]: Boogie Preprocessor took 76.78ms. Allocated memory is still 427.8MB. Free memory was 374.6MB in the beginning and 373.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:06:23,329 INFO L158 Benchmark]: RCFGBuilder took 857.78ms. Allocated memory is still 427.8MB. Free memory was 373.0MB in the beginning and 343.4MB in the end (delta: 29.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,334 INFO L158 Benchmark]: CodeCheck took 1089.62ms. Allocated memory is still 427.8MB. Free memory was 343.4MB in the beginning and 302.7MB in the end (delta: 40.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,334 INFO L158 Benchmark]: Witness Printer took 164.53ms. Allocated memory is still 427.8MB. Free memory was 302.7MB in the beginning and 297.2MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:06:23,336 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: 1.0s, 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, 0.1s 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 0.72ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3051.90ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 112.6MB in the beginning and 380.0MB in the end (delta: -267.4MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 141.19ms. Allocated memory is still 427.8MB. Free memory was 380.0MB in the beginning and 374.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.78ms. Allocated memory is still 427.8MB. Free memory was 374.6MB in the beginning and 373.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 857.78ms. Allocated memory is still 427.8MB. Free memory was 373.0MB in the beginning and 343.4MB in the end (delta: 29.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 1089.62ms. Allocated memory is still 427.8MB. Free memory was 343.4MB in the beginning and 302.7MB in the end (delta: 40.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 164.53ms. Allocated memory is still 427.8MB. Free memory was 302.7MB in the beginning and 297.2MB 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! [2024-11-25 04:06:23,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb93e52b-42bc-4f76-8333-a53dc6736a0a/bin/ukojak-verify-ENZ3QT5qd3/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