./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2 --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 dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:38:08,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:38:08,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:38:08,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:38:08,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:38:08,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:38:08,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:38:08,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:38:08,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:38:08,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:38:08,219 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:38:08,220 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:38:08,220 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:38:08,220 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:38:08,221 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:38:08,221 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:38:08,221 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:38:08,222 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:38:08,222 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:38:08,222 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:38:08,223 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:38:08,229 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:38:08,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:38:08,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:38:08,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:38:08,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:38:08,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:38:08,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:38:08,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:38:08,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:38:08,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:38:08,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:38:08,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:38:08,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:38:08,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:38:08,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:08,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:38:08,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:38:08,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:38:08,236 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:38:08,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:38:08,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:38:08,237 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:38:08,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:38:08,237 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d [2024-11-02 12:38:08,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:38:08,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:38:08,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:38:08,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:38:08,596 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:38:08,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i Unable to find full path for "g++" [2024-11-02 12:38:10,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:38:11,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:38:11,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2024-11-02 12:38:11,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/data/090445ea3/0ef77c97731849bd84368130e6eafb2d/FLAG0071b463a [2024-11-02 12:38:11,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/data/090445ea3/0ef77c97731849bd84368130e6eafb2d [2024-11-02 12:38:11,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:38:11,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:38:11,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:11,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:38:11,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:38:11,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:11" (1/1) ... [2024-11-02 12:38:11,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa21553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:11, skipping insertion in model container [2024-11-02 12:38:11,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:11" (1/1) ... [2024-11-02 12:38:11,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:38:11,586 WARN L251 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_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2024-11-02 12:38:11,596 WARN L251 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_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2024-11-02 12:38:12,856 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,856 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,859 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,860 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,861 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,874 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,875 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,880 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,881 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,883 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,884 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,885 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:12,885 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,559 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,573 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:13,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:38:13,712 WARN L251 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_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2024-11-02 12:38:13,713 WARN L251 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_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2024-11-02 12:38:13,795 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,795 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,796 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,796 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,797 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,808 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,812 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,814 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,818 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,820 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,821 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,823 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,824 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,943 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,957 WARN L1657 CHandler]: Possible shadowing of function index [2024-11-02 12:38:13,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-11-02 12:38:14,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:14,309 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:38:14,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14 WrapperNode [2024-11-02 12:38:14,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:14,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:14,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:38:14,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:38:14,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,457 INFO L138 Inliner]: procedures = 679, calls = 1720, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 701 [2024-11-02 12:38:14,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:14,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:38:14,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:38:14,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:38:14,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:38:14,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:38:14,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:38:14,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:38:14,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (1/1) ... [2024-11-02 12:38:14,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:14,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:14,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:38:14,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:38:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:38:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-02 12:38:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-02 12:38:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-02 12:38:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-02 12:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-02 12:38:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-02 12:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:38:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:38:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-02 12:38:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-02 12:38:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:38:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:38:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:38:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:38:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-02 12:38:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-02 12:38:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:38:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:38:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:38:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-02 12:38:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-02 12:38:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-02 12:38:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:38:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:38:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-02 12:38:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-02 12:38:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-02 12:38:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:38:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-02 12:38:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:38:15,034 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:38:15,037 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:38:20,020 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-02 12:38:20,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:38:20,338 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:38:20,338 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:38:20,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:20 BoogieIcfgContainer [2024-11-02 12:38:20,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:38:20,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:38:20,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:38:20,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:38:20,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:38:11" (1/3) ... [2024-11-02 12:38:20,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d55322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:20, skipping insertion in model container [2024-11-02 12:38:20,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:14" (2/3) ... [2024-11-02 12:38:20,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d55322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:20, skipping insertion in model container [2024-11-02 12:38:20,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:20" (3/3) ... [2024-11-02 12:38:20,352 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2024-11-02 12:38:20,373 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:38:20,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:38:20,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:38:20,471 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;@289d0b59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:38:20,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:38:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 69 states have (on average 1.144927536231884) internal successors, (79), 70 states have internal predecessors, (79), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-02 12:38:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-02 12:38:20,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:20,497 INFO L215 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:20,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:38:20,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:20,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1853835229, now seen corresponding path program 1 times [2024-11-02 12:38:20,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:20,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347909874] [2024-11-02 12:38:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:20,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-02 12:38:29,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347909874] [2024-11-02 12:38:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347909874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:38:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696928398] [2024-11-02 12:38:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:38:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:29,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:38:29,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ee4ac1-80d3-44b3-afed-d8c6d8dc341d/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:38:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:38,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 4528 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:38:38,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:38:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-02 12:38:39,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:38:39,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696928398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:39,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:38:39,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-02 12:38:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825940140] [2024-11-02 12:38:39,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:39,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:38:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:39,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:38:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:38:39,276 INFO L87 Difference]: Start difference. First operand has 137 states, 69 states have (on average 1.144927536231884) internal successors, (79), 70 states have internal predecessors, (79), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-02 12:38:41,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:38:43,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []