./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 90d8983d1d445f35ced762b5547157927629cd141f5cc02ba145442ec7c5e770 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:55:03,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:55:03,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:55:03,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:55:03,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:55:03,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:55:03,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:55:03,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:55:03,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:55:03,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:55:03,690 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:55:03,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:55:03,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:55:03,690 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:55:03,690 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:55:03,691 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:55:03,691 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:55:03,691 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:55:03,691 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:55:03,691 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:55:03,691 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:55:03,692 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:55:03,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:55:03,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:55:03,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:55:03,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:55:03,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:55:03,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:55:03,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:55:03,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:55:03,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:03,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:55:03,695 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:55:03,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:55:03,696 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 90d8983d1d445f35ced762b5547157927629cd141f5cc02ba145442ec7c5e770 [2024-11-14 04:55:04,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:55:04,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:55:04,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:55:04,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:55:04,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:55:04,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i Unable to find full path for "g++" [2024-11-14 04:55:06,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:55:06,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:55:06,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2024-11-14 04:55:06,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/data/26cb97d30/fc81e8d46ca74984aa0c616d43be3535/FLAGbd307d9d7 [2024-11-14 04:55:06,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/data/26cb97d30/fc81e8d46ca74984aa0c616d43be3535 [2024-11-14 04:55:06,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:55:06,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:55:06,908 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:06,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:55:06,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:55:06,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:06" (1/1) ... [2024-11-14 04:55:06,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a395096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:06, skipping insertion in model container [2024-11-14 04:55:06,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:06" (1/1) ... [2024-11-14 04:55:06,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:55:07,254 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2024-11-14 04:55:07,262 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2024-11-14 04:55:08,220 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,221 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,222 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,223 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,224 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,243 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,244 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,247 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,251 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,254 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,260 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,261 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:08,261 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,046 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[150740,150753] [2024-11-14 04:55:09,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:09,080 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:55:09,109 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2024-11-14 04:55:09,109 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2024-11-14 04:55:09,228 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,230 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,244 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,245 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,246 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,247 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,248 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,249 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,249 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,250 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:55:09,404 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_a446e08b-f1cc-4a80-9a79-69a4fc784c87/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[150740,150753] [2024-11-14 04:55:09,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:09,654 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:55:09,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09 WrapperNode [2024-11-14 04:55:09,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:09,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:09,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:55:09,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:55:09,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,778 INFO L138 Inliner]: procedures = 668, calls = 1048, calls flagged for inlining = 51, calls inlined = 4, statements flattened = 76 [2024-11-14 04:55:09,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:09,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:55:09,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:55:09,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:55:09,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:55:09,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:55:09,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:55:09,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:55:09,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (1/1) ... [2024-11-14 04:55:09,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:09,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:55:09,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:55:09,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:55:09,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:55:09,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:55:09,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:55:09,940 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-14 04:55:09,942 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-14 04:55:09,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:55:09,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:55:09,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:55:09,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:55:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:55:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:55:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:55:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:55:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:55:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2024-11-14 04:55:09,944 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2024-11-14 04:55:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:55:10,188 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:55:10,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:55:10,470 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-14 04:55:10,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:55:10,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:55:10,569 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:55:10,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:10 BoogieIcfgContainer [2024-11-14 04:55:10,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:55:10,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:55:10,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:55:10,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:55:10,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:55:06" (1/3) ... [2024-11-14 04:55:10,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d677c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:10, skipping insertion in model container [2024-11-14 04:55:10,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:09" (2/3) ... [2024-11-14 04:55:10,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d677c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:10, skipping insertion in model container [2024-11-14 04:55:10,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:10" (3/3) ... [2024-11-14 04:55:10,579 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_insert_after_harness.i [2024-11-14 04:55:10,597 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:55:10,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_insert_after_harness.i that has 5 procedures, 46 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:55:10,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:55:10,694 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=FINITE_AUTOMATA, 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;@387d0361, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:55:10,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:55:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 04:55:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:55:10,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:10,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:55:10,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:10,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash -989440254, now seen corresponding path program 1 times [2024-11-14 04:55:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:55:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544422145] [2024-11-14 04:55:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:10,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:55:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:55:14,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:55:14,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544422145] [2024-11-14 04:55:14,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544422145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:55:14,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:55:14,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 04:55:14,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727652330] [2024-11-14 04:55:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:55:14,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:55:14,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:55:14,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:55:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:55:14,528 INFO L87 Difference]: Start difference. First operand has 46 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 04:55:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:55:15,063 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2024-11-14 04:55:15,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:55:15,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2024-11-14 04:55:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:55:15,074 INFO L225 Difference]: With dead ends: 86 [2024-11-14 04:55:15,074 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 04:55:15,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:55:15,085 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 6 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:55:15,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 250 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:55:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 04:55:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-14 04:55:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 04:55:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2024-11-14 04:55:15,161 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 19 [2024-11-14 04:55:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:55:15,167 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2024-11-14 04:55:15,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 04:55:15,168 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2024-11-14 04:55:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:55:15,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:15,171 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:55:15,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:55:15,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:15,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:15,173 INFO L85 PathProgramCache]: Analyzing trace with hash 473962202, now seen corresponding path program 1 times [2024-11-14 04:55:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:55:15,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102592913] [2024-11-14 04:55:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:15,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:55:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:55:17,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:55:17,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102592913] [2024-11-14 04:55:17,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102592913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:55:17,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614411329] [2024-11-14 04:55:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:17,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:55:17,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:55:17,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:55:17,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a446e08b-f1cc-4a80-9a79-69a4fc784c87/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:55:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:18,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-14 04:55:18,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:18,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-14 04:55:18,326 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-14 04:55:18,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-14 04:55:18,347 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-14 04:55:18,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 56 [2024-11-14 04:55:20,494 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_1| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1|) (not (= |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_1|) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_1|))))) is different from true [2024-11-14 04:55:22,651 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2| Int) (|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_2| Int)) (and (not (= |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_2|))) (<= 2 |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_2|))) is different from true [2024-11-14 04:55:24,789 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_3| Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.offset_BEFORE_CALL_3|) |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_insert_after_~after#1.base_BEFORE_CALL_3|))) is different from true [2024-11-14 04:55:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 20 [2024-11-14 04:55:25,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,221 INFO L349 Elim1Store]: treesize reduction 201, result has 6.9 percent of original size [2024-11-14 04:55:25,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 356 treesize of output 309 [2024-11-14 04:55:25,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 54 [2024-11-14 04:55:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:55:25,326 INFO L349 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2024-11-14 04:55:25,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 183 treesize of output 165 [2024-11-14 04:55:25,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2024-11-14 04:55:25,383 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-14 04:55:25,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-11-14 04:55:25,421 INFO L349 Elim1Store]: treesize reduction 60, result has 7.7 percent of original size [2024-11-14 04:55:25,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 52 [2024-11-14 04:55:25,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-14 04:55:25,455 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-14 04:55:25,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-14 04:55:25,482 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:55:25,483 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:55:25,491 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:55:25,492 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:55:25,498 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-14 04:55:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2024-11-14 04:55:27,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:55:31,872 INFO L349 Elim1Store]: treesize reduction 8043, result has 2.9 percent of original size [2024-11-14 04:55:31,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 246088 treesize of output 222946