./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje --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 56930072253bb80620cfd5323053bdb4c7b4f32002f7dcce9e2ae892c8088a26 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:52:58,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:52:58,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 04:52:58,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:52:58,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:52:58,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:52:58,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:52:58,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:52:58,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:52:58,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:52:58,199 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:52:58,199 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:52:58,200 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:52:58,205 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:52:58,205 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:52:58,205 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:52:58,206 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:52:58,206 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:52:58,207 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:52:58,207 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:52:58,207 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:52:58,208 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:52:58,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:52:58,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:52:58,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:52:58,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:52:58,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:52:58,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:52:58,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:52:58,211 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:52:58,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:52:58,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:52:58,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:52:58,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:52:58,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:52:58,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:52:58,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:52:58,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:52:58,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:52:58,216 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:52:58,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:52:58,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:52:58,217 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:52:58,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:52:58,218 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_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56930072253bb80620cfd5323053bdb4c7b4f32002f7dcce9e2ae892c8088a26 [2024-11-09 04:52:58,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:52:58,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:52:58,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:52:58,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:52:58,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:52:58,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i Unable to find full path for "g++" [2024-11-09 04:53:00,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:53:01,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:53:01,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i [2024-11-09 04:53:01,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/data/2ffb37b45/6545f16a38f447f583fd112ded31ea18/FLAG2ca18f5da [2024-11-09 04:53:01,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/data/2ffb37b45/6545f16a38f447f583fd112ded31ea18 [2024-11-09 04:53:01,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:53:01,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:53:01,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:53:01,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:53:01,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:53:01,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:53:01" (1/1) ... [2024-11-09 04:53:01,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5a3a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:01, skipping insertion in model container [2024-11-09 04:53:01,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:53:01" (1/1) ... [2024-11-09 04:53:01,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:53:01,984 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_a8bf42a0-ec70-456d-8ba7-71c71094e954/sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i[4486,4499] [2024-11-09 04:53:01,995 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_a8bf42a0-ec70-456d-8ba7-71c71094e954/sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i[4546,4559] [2024-11-09 04:53:03,298 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,299 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,300 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,301 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,302 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,318 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,319 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,321 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:03,322 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,269 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,271 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:53:04,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:53:04,518 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_a8bf42a0-ec70-456d-8ba7-71c71094e954/sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i[4486,4499] [2024-11-09 04:53:04,519 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_a8bf42a0-ec70-456d-8ba7-71c71094e954/sv-benchmarks/c/aws-c-common/aws_array_eq_harness-1.i[4546,4559] [2024-11-09 04:53:04,571 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,571 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,572 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,573 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,574 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,583 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,584 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,585 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,586 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-09 04:53:04,803 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,804 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:53:04,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-09 04:53:04,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:53:05,087 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:53:05,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05 WrapperNode [2024-11-09 04:53:05,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:53:05,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:53:05,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:53:05,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:53:05,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,355 INFO L138 Inliner]: procedures = 680, calls = 2610, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 791 [2024-11-09 04:53:05,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:53:05,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:53:05,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:53:05,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:53:05,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:53:05,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:53:05,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:53:05,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:53:05,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (1/1) ... [2024-11-09 04:53:05,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:53:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:53:05,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:53:05,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:53:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:53:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 04:53:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 04:53:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 04:53:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:53:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:53:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:53:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:53:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:53:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 04:53:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 04:53:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:53:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:53:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 04:53:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 04:53:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 04:53:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 04:53:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 04:53:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 04:53:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 04:53:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:53:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:53:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:53:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-09 04:53:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-09 04:53:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:53:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 04:53:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 04:53:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:53:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:53:05,963 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:53:05,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:53:13,182 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-09 04:53:13,182 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:53:13,739 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:53:13,739 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:53:13,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:53:13 BoogieIcfgContainer [2024-11-09 04:53:13,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:53:13,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:53:13,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:53:13,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:53:13,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:53:01" (1/3) ... [2024-11-09 04:53:13,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433bab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:53:13, skipping insertion in model container [2024-11-09 04:53:13,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:53:05" (2/3) ... [2024-11-09 04:53:13,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433bab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:53:13, skipping insertion in model container [2024-11-09 04:53:13,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:53:13" (3/3) ... [2024-11-09 04:53:13,752 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_eq_harness-1.i [2024-11-09 04:53:13,771 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:53:13,772 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:53:13,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:53:13,868 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;@5969a075, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:53:13,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:53:13,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 42 states have internal predecessors, (50), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 04:53:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 04:53:13,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:53:13,883 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-09 04:53:13,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:53:13,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:53:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1305563195, now seen corresponding path program 1 times [2024-11-09 04:53:13,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:53:13,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19098235] [2024-11-09 04:53:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:53:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:55:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:55:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 04:55:43,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:55:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19098235] [2024-11-09 04:55:43,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19098235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:55:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186460872] [2024-11-09 04:55:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:55:43,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:55:43,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:55:43,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:55:43,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:57:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:57:51,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 7505 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 04:57:51,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:57:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 04:57:51,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:57:51,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186460872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:57:51,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:57:51,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-09 04:57:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124153920] [2024-11-09 04:57:51,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:57:51,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:57:51,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:57:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:57:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 04:57:51,704 INFO L87 Difference]: Start difference. First operand has 74 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 42 states have internal predecessors, (50), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 04:57:53,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:57:56,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:57:58,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:58:00,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:58:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:01,998 INFO L93 Difference]: Finished difference Result 130 states and 185 transitions. [2024-11-09 04:58:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:58:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 50 [2024-11-09 04:58:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:02,011 INFO L225 Difference]: With dead ends: 130 [2024-11-09 04:58:02,012 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 04:58:02,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:58:02,019 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 12 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:02,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 317 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 4 Unknown, 0 Unchecked, 10.1s Time] [2024-11-09 04:58:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 04:58:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2024-11-09 04:58:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 47 states have internal predecessors, (54), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 04:58:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 113 transitions. [2024-11-09 04:58:02,084 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 113 transitions. Word has length 50 [2024-11-09 04:58:02,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:02,085 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 113 transitions. [2024-11-09 04:58:02,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 04:58:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 113 transitions. [2024-11-09 04:58:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 04:58:02,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:02,090 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-09 04:58:02,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:58:02,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:58:02,292 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:58:02,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1424971261, now seen corresponding path program 1 times [2024-11-09 04:58:02,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:02,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853499532] [2024-11-09 04:58:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:00:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:00:06,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:00:06,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853499532] [2024-11-09 05:00:06,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853499532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:00:06,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:00:06,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:00:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450341220] [2024-11-09 05:00:06,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:00:06,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:00:06,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:00:06,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:00:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:06,159 INFO L87 Difference]: Start difference. First operand 85 states and 113 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 05:00:08,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:00:10,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:00:12,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:00:15,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:00:17,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:00:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:00:18,535 INFO L93 Difference]: Finished difference Result 142 states and 197 transitions. [2024-11-09 05:00:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:00:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2024-11-09 05:00:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:00:18,542 INFO L225 Difference]: With dead ends: 142 [2024-11-09 05:00:18,543 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 05:00:18,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:00:18,545 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:00:18,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 406 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 5 Unknown, 0 Unchecked, 12.3s Time] [2024-11-09 05:00:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 05:00:18,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-09 05:00:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 60 states have internal predecessors, (69), 45 states have call successors, (45), 10 states have call predecessors, (45), 11 states have return successors, (47), 43 states have call predecessors, (47), 44 states have call successors, (47) [2024-11-09 05:00:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-09 05:00:18,574 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 54 [2024-11-09 05:00:18,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:00:18,575 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-09 05:00:18,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 05:00:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-09 05:00:18,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:00:18,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:18,579 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-09 05:00:18,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:00:18,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:00:18,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash 521431199, now seen corresponding path program 1 times [2024-11-09 05:00:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064092272] [2024-11-09 05:00:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:18,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:02:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:02:28,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:02:28,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064092272] [2024-11-09 05:02:28,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064092272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:02:28,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:02:28,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:02:28,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254008760] [2024-11-09 05:02:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:02:28,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:02:28,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:02:28,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:02:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:02:28,801 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:02:30,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:33,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:35,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:37,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:40,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:42,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:02:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:02:44,047 INFO L93 Difference]: Finished difference Result 129 states and 177 transitions. [2024-11-09 05:02:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:02:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 55 [2024-11-09 05:02:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:02:44,051 INFO L225 Difference]: With dead ends: 129 [2024-11-09 05:02:44,051 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 05:02:44,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:02:44,053 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 15 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:02:44,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 497 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 6 Unknown, 0 Unchecked, 15.1s Time] [2024-11-09 05:02:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 05:02:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-09 05:02:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 56 states have internal predecessors, (64), 39 states have call successors, (39), 10 states have call predecessors, (39), 11 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2024-11-09 05:02:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 144 transitions. [2024-11-09 05:02:44,082 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 144 transitions. Word has length 55 [2024-11-09 05:02:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:02:44,082 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 144 transitions. [2024-11-09 05:02:44,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:02:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 144 transitions. [2024-11-09 05:02:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 05:02:44,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:02:44,091 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 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] [2024-11-09 05:02:44,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:02:44,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:02:44,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:02:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1663382302, now seen corresponding path program 1 times [2024-11-09 05:02:44,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:02:44,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638509370] [2024-11-09 05:02:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:02:44,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:04:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 05:04:58,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:04:58,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638509370] [2024-11-09 05:04:58,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638509370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:04:58,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897246345] [2024-11-09 05:04:58,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:04:58,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:04:58,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:04:58,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:04:58,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bf42a0-ec70-456d-8ba7-71c71094e954/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:06:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:06:52,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 7539 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-09 05:06:52,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:06:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 05:06:57,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:07:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 05:07:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897246345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:07:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1009217006] [2024-11-09 05:07:05,299 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 05:07:05,300 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:07:05,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:07:05,309 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:07:05,309 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs