./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:36:17,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:36:17,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:36:17,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:36:17,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:36:18,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:36:18,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:36:18,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:36:18,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:36:18,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:36:18,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:36:18,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:36:18,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:36:18,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:36:18,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:36:18,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:36:18,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:36:18,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:36:18,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:36:18,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:36:18,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:36:18,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:36:18,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:36:18,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:36:18,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:36:18,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:36:18,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:36:18,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:36:18,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:36:18,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:18,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:36:18,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:36:18,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:36:18,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:36:18,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:36:18,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:36:18,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:36:18,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:36:18,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:36:18,040 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2024-11-12 08:36:18,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:36:18,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:36:18,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:36:18,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:36:18,368 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:36:18,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-11-12 08:36:19,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:36:20,319 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:36:20,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2024-11-12 08:36:20,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236ba8776/f32f70c3773147c09cd14f98fd138143/FLAG5f9bcd9b9 [2024-11-12 08:36:20,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/236ba8776/f32f70c3773147c09cd14f98fd138143 [2024-11-12 08:36:20,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:36:20,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:36:20,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:20,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:36:20,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:36:20,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:20" (1/1) ... [2024-11-12 08:36:20,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595064b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:20, skipping insertion in model container [2024-11-12 08:36:20,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:36:20" (1/1) ... [2024-11-12 08:36:20,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:36:20,926 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2024-11-12 08:36:20,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2024-11-12 08:36:22,451 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,454 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,455 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,469 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,470 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,471 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,472 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,477 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:22,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,354 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,361 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:23,522 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:36:23,543 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2024-11-12 08:36:23,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2024-11-12 08:36:23,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,692 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,693 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,694 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,694 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,696 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,816 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,820 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:36:23,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-11-12 08:36:23,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:36:24,115 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:36:24,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24 WrapperNode [2024-11-12 08:36:24,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:36:24,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:24,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:36:24,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:36:24,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,303 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-11-12 08:36:24,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:36:24,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:36:24,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:36:24,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:36:24,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,410 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 238, 3, 47, 6, 7]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 1, 10, 0, 5]. The 238 writes are split as follows [0, 232, 1, 3, 2, 0]. [2024-11-12 08:36:24,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:36:24,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:36:24,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:36:24,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:36:24,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (1/1) ... [2024-11-12 08:36:24,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:36:24,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:36:24,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 08:36:24,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 08:36:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:36:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-12 08:36:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-12 08:36:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-12 08:36:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-12 08:36:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:36:24,656 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:36:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:36:24,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:36:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:36:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:36:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:36:24,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:36:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:36:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-12 08:36:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-12 08:36:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:36:24,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:36:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:36:24,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:36:24,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:36:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:36:24,661 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:36:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:36:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-12 08:36:24,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-12 08:36:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-12 08:36:24,663 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-12 08:36:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:36:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:36:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-12 08:36:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:36:24,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:36:24,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:36:24,665 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:36:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:36:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-12 08:36:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-12 08:36:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:36:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:36:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:36:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:36:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:36:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:36:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:36:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-12 08:36:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:36:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:36:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:36:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:36:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:36:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:36:25,045 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:36:25,048 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:36:31,354 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-12 08:36:31,355 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:36:31,368 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:36:31,369 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 08:36:31,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:31 BoogieIcfgContainer [2024-11-12 08:36:31,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:36:31,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:36:31,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:36:31,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:36:31,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:36:20" (1/3) ... [2024-11-12 08:36:31,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62683411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:31, skipping insertion in model container [2024-11-12 08:36:31,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:36:24" (2/3) ... [2024-11-12 08:36:31,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62683411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:36:31, skipping insertion in model container [2024-11-12 08:36:31,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:36:31" (3/3) ... [2024-11-12 08:36:31,378 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2024-11-12 08:36:31,395 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:36:31,395 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:36:31,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:36:31,479 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=PETRI_NET, 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;@5e7b367a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:36:31,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:36:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-12 08:36:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-12 08:36:31,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:31,498 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:31,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:31,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1876716262, now seen corresponding path program 1 times [2024-11-12 08:36:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:31,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891513814] [2024-11-12 08:36:31,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:31,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:36:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:36:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:36:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:36:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:36:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:36:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:36:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 08:36:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:36:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 08:36:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 08:36:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:37,904 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-12 08:36:37,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:36:37,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891513814] [2024-11-12 08:36:37,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891513814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:36:37,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:36:37,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:36:37,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847456004] [2024-11-12 08:36:37,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:36:37,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:36:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:36:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:36:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:36:37,947 INFO L87 Difference]: Start difference. First operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-12 08:36:42,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:36:46,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:36:50,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:36:50,233 INFO L93 Difference]: Finished difference Result 250 states and 339 transitions. [2024-11-12 08:36:50,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:36:50,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2024-11-12 08:36:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:36:50,247 INFO L225 Difference]: With dead ends: 250 [2024-11-12 08:36:50,247 INFO L226 Difference]: Without dead ends: 125 [2024-11-12 08:36:50,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:36:50,252 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 89 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-12 08:36:50,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2024-11-12 08:36:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-12 08:36:50,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2024-11-12 08:36:50,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-12 08:36:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-11-12 08:36:50,304 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2024-11-12 08:36:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:36:50,304 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-11-12 08:36:50,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-12 08:36:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-11-12 08:36:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-12 08:36:50,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:36:50,310 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:36:50,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:36:50,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:36:50,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:36:50,312 INFO L85 PathProgramCache]: Analyzing trace with hash 879930080, now seen corresponding path program 1 times [2024-11-12 08:36:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:36:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798140556] [2024-11-12 08:36:50,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:36:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:56,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:36:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:56,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:36:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:56,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:36:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:56,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:36:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:56,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:36:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:36:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:36:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 08:36:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-12 08:36:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 08:36:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 08:36:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:36:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-12 08:36:57,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:36:57,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798140556] [2024-11-12 08:36:57,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798140556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:36:57,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679512393] [2024-11-12 08:36:57,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:36:57,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:36:57,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:36:57,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 08:36:57,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 08:37:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:03,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 08:37:03,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:37:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-12 08:37:04,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 08:37:04,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679512393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:37:04,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 08:37:04,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-12 08:37:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170933318] [2024-11-12 08:37:04,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:37:04,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:37:04,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:04,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:37:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-12 08:37:04,374 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-12 08:37:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:37:06,303 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2024-11-12 08:37:06,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:37:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2024-11-12 08:37:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:37:06,306 INFO L225 Difference]: With dead ends: 193 [2024-11-12 08:37:06,306 INFO L226 Difference]: Without dead ends: 116 [2024-11-12 08:37:06,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-12 08:37:06,308 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 08:37:06,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 08:37:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-12 08:37:06,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-12 08:37:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 74 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2024-11-12 08:37:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2024-11-12 08:37:06,326 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2024-11-12 08:37:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:37:06,327 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2024-11-12 08:37:06,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-12 08:37:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2024-11-12 08:37:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 08:37:06,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:37:06,330 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-12 08:37:06,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 08:37:06,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:06,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:37:06,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:37:06,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1619368212, now seen corresponding path program 1 times [2024-11-12 08:37:06,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:37:06,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141503585] [2024-11-12 08:37:06,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:06,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:12,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:37:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:12,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:37:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:12,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:37:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:12,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:37:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 08:37:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:37:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:37:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-12 08:37:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 08:37:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:13,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 08:37:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:14,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 08:37:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:14,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 08:37:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-12 08:37:14,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:37:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141503585] [2024-11-12 08:37:14,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141503585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:37:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438813978] [2024-11-12 08:37:14,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:14,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:14,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:37:14,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 08:37:14,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 08:37:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:37:19,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 4203 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 08:37:19,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:37:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-12 08:37:21,652 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 08:37:21,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438813978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:37:21,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 08:37:21,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-12 08:37:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44174359] [2024-11-12 08:37:21,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:37:21,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 08:37:21,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:37:21,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 08:37:21,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-12 08:37:21,655 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-12 08:37:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:37:25,261 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2024-11-12 08:37:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 08:37:25,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 86 [2024-11-12 08:37:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:37:25,264 INFO L225 Difference]: With dead ends: 182 [2024-11-12 08:37:25,264 INFO L226 Difference]: Without dead ends: 114 [2024-11-12 08:37:25,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-12 08:37:25,266 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-12 08:37:25,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-12 08:37:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-12 08:37:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-12 08:37:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-12 08:37:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-12 08:37:25,280 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2024-11-12 08:37:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:37:25,280 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-12 08:37:25,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-12 08:37:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-12 08:37:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-12 08:37:25,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:37:25,283 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:37:25,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 08:37:25,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-12 08:37:25,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:37:25,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:37:25,485 INFO L85 PathProgramCache]: Analyzing trace with hash 626282708, now seen corresponding path program 1 times [2024-11-12 08:37:25,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:37:25,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9182626] [2024-11-12 08:37:25,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:25,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:37:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 08:37:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955090521] [2024-11-12 08:37:34,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:37:34,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:37:34,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:37:34,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 08:37:34,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process