./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/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 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:22:52,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:22:52,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:22:52,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:22:52,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:22:52,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:22:52,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:22:52,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:22:52,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:22:52,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:22:52,836 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:22:52,836 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:22:52,837 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:22:52,838 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:22:52,838 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:22:52,838 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:22:52,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:22:52,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:22:52,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:22:52,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:22:52,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:22:52,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:22:52,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:22:52,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:22:52,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:22:52,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:22:52,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:22:52,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:22:52,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:22:52,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:22:52,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:22:52,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:22:52,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:22:52,842 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:22:52,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:22:52,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:22:52,843 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:22:52,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:22:52,843 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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/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 -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2024-11-14 04:22:53,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:22:53,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:22:53,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:22:53,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:22:53,201 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:22:53,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i Unable to find full path for "g++" [2024-11-14 04:22:55,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:22:56,340 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:22:56,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-14 04:22:56,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/data/e77d0f999/5656405c49024127bb3803b0573d0fc5/FLAG0c4dae897 [2024-11-14 04:22:56,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/data/e77d0f999/5656405c49024127bb3803b0573d0fc5 [2024-11-14 04:22:56,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:22:56,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:22:56,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:56,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:22:56,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:22:56,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:56" (1/1) ... [2024-11-14 04:22:56,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d70514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:56, skipping insertion in model container [2024-11-14 04:22:56,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:56" (1/1) ... [2024-11-14 04:22:56,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:22:56,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2024-11-14 04:22:56,947 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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2024-11-14 04:22:58,114 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,116 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,116 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,118 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,119 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,145 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,145 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,148 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,149 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,151 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,153 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,154 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,154 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,958 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:58,967 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:59,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:22:59,095 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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2024-11-14 04:22:59,096 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_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2024-11-14 04:22:59,174 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,175 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,175 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,176 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,176 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,187 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,188 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,189 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,190 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,191 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,192 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,193 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,193 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,362 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,370 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 04:22:59,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-14 04:22:59,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:59,675 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:22:59,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59 WrapperNode [2024-11-14 04:22:59,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:59,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:59,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:22:59,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:22:59,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,911 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-14 04:22:59,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:59,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:22:59,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:22:59,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:22:59,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:22:59,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:23:00,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:23:00,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:23:00,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:23:00,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:23:00,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:23:00,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (1/1) ... [2024-11-14 04:23:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:23:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:00,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:23:00,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:23:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:23:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-14 04:23:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-14 04:23:00,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 04:23:00,117 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-14 04:23:00,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:23:00,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:23:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-14 04:23:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-14 04:23:00,118 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-14 04:23:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:23:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-14 04:23:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-14 04:23:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-14 04:23:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-14 04:23:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:23:00,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:23:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-14 04:23:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 04:23:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-14 04:23:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:23:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-14 04:23:00,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-14 04:23:00,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:23:00,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:23:00,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:23:05,458 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-14 04:23:05,459 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:23:05,953 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:23:05,955 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:23:05,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:05 BoogieIcfgContainer [2024-11-14 04:23:05,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:23:05,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:23:05,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:23:05,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:23:05,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:22:56" (1/3) ... [2024-11-14 04:23:05,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cb363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:05, skipping insertion in model container [2024-11-14 04:23:05,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:59" (2/3) ... [2024-11-14 04:23:05,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cb363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:05, skipping insertion in model container [2024-11-14 04:23:05,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:05" (3/3) ... [2024-11-14 04:23:05,973 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2024-11-14 04:23:05,996 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:23:05,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_back_harness.i that has 18 procedures, 155 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:23:06,087 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:23:06,103 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;@4570d7e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:23:06,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:23:06,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 82 states have internal predecessors, (95), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:23:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-14 04:23:06,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:06,123 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 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, 1] [2024-11-14 04:23:06,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:06,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 724149880, now seen corresponding path program 1 times [2024-11-14 04:23:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:23:06,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668503369] [2024-11-14 04:23:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:23:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-14 04:23:17,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:23:17,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668503369] [2024-11-14 04:23:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668503369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:23:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715744608] [2024-11-14 04:23:17,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:17,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:23:17,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:17,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:23:17,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:23:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:26,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 4194 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:23:26,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-14 04:23:26,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:23:26,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715744608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:23:26,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:23:26,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 04:23:26,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267402516] [2024-11-14 04:23:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:23:26,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:23:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:23:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:23:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:23:26,760 INFO L87 Difference]: Start difference. First operand has 155 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 82 states have internal predecessors, (95), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 04:23:28,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:23:31,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:23:33,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:23:34,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:23:34,873 INFO L93 Difference]: Finished difference Result 287 states and 401 transitions. [2024-11-14 04:23:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:23:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 99 [2024-11-14 04:23:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:23:34,886 INFO L225 Difference]: With dead ends: 287 [2024-11-14 04:23:34,887 INFO L226 Difference]: Without dead ends: 151 [2024-11-14 04:23:34,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:23:34,894 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 37 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:23:34,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 604 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2024-11-14 04:23:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-14 04:23:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-14 04:23:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.1282051282051282) internal successors, (88), 80 states have internal predecessors, (88), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-14 04:23:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 201 transitions. [2024-11-14 04:23:34,990 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 201 transitions. Word has length 99 [2024-11-14 04:23:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:23:34,991 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 201 transitions. [2024-11-14 04:23:34,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 04:23:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 201 transitions. [2024-11-14 04:23:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 04:23:34,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:34,997 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 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, 1] [2024-11-14 04:23:35,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:23:35,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:23:35,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:35,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1167107018, now seen corresponding path program 1 times [2024-11-14 04:23:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:23:35,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219011780] [2024-11-14 04:23:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:35,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:23:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-14 04:23:44,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:23:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219011780] [2024-11-14 04:23:44,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219011780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:23:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408979080] [2024-11-14 04:23:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:44,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:23:44,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:44,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:23:44,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:23:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:52,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 4402 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:23:52,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:53,586 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-14 04:23:53,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:23:53,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408979080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:23:53,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:23:53,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-14 04:23:53,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282404257] [2024-11-14 04:23:53,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:23:53,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:23:53,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:23:53,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:23:53,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:23:53,592 INFO L87 Difference]: Start difference. First operand 151 states and 201 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-14 04:23:55,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:23:57,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:24:00,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:24:02,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:24:04,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:04,062 INFO L93 Difference]: Finished difference Result 242 states and 322 transitions. [2024-11-14 04:24:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:24:04,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 117 [2024-11-14 04:24:04,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:04,066 INFO L225 Difference]: With dead ends: 242 [2024-11-14 04:24:04,066 INFO L226 Difference]: Without dead ends: 151 [2024-11-14 04:24:04,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:24:04,068 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 36 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 24 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:24:04,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 725 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 153 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2024-11-14 04:24:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-14 04:24:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-14 04:24:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.1282051282051282) internal successors, (88), 80 states have internal predecessors, (88), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-14 04:24:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 198 transitions. [2024-11-14 04:24:04,091 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 198 transitions. Word has length 117 [2024-11-14 04:24:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:04,092 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 198 transitions. [2024-11-14 04:24:04,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-14 04:24:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 198 transitions. [2024-11-14 04:24:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:24:04,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:04,096 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2024-11-14 04:24:04,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:24:04,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:24:04,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:04,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1250293825, now seen corresponding path program 2 times [2024-11-14 04:24:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:24:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44306192] [2024-11-14 04:24:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:24:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-14 04:24:13,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:24:13,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44306192] [2024-11-14 04:24:13,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44306192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:24:13,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950919182] [2024-11-14 04:24:13,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:24:13,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:24:13,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:24:13,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:24:13,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8713c9-4bfa-4a6f-b34e-3ea159ec2e62/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process