./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_priority_queue_top_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 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:23:34,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:23:34,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:23:34,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:23:34,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:23:34,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:23:34,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:23:34,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:23:34,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:23:34,499 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:23:34,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:23:34,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:23:34,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:23:34,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:23:34,502 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:23:34,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:23:34,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:23:34,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:23:34,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:23:34,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:23:34,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:23:34,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:23:34,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:23:34,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:23:34,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:23:34,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:23:34,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:23:34,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:23:34,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:23:34,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:34,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:23:34,508 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:23:34,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:23:34,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:23:34,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83b04173d709803d577cfa49fe0a9356919fe4fb57e740404cfb5ffbf2560c97 [2024-11-22 14:23:34,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:23:34,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:23:34,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:23:34,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:23:34,733 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:23:34,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-11-22 14:23:35,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:23:36,287 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:23:36,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2024-11-22 14:23:36,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2185650e7/d4c463f64c9347d49d5b78b8e30465c9/FLAGce1f38b00 [2024-11-22 14:23:36,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2185650e7/d4c463f64c9347d49d5b78b8e30465c9 [2024-11-22 14:23:36,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:23:36,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:23:36,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:36,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:23:36,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:23:36,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:36" (1/1) ... [2024-11-22 14:23:36,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdc7de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36, skipping insertion in model container [2024-11-22 14:23:36,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:36" (1/1) ... [2024-11-22 14:23:36,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:23:36,853 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_priority_queue_top_harness.i[4496,4509] [2024-11-22 14:23:36,860 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_priority_queue_top_harness.i[4556,4569] [2024-11-22 14:23:37,445 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,445 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,446 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,448 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,462 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,463 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,464 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,466 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,768 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,769 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:37,862 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:23:37,876 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_priority_queue_top_harness.i[4496,4509] [2024-11-22 14:23:37,877 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_priority_queue_top_harness.i[4556,4569] [2024-11-22 14:23:37,945 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,945 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,953 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,953 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,954 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:37,954 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:38,021 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:38,022 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:23:38,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-11-22 14:23:38,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:23:38,304 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:23:38,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38 WrapperNode [2024-11-22 14:23:38,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:23:38,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:38,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:23:38,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:23:38,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,445 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 727 [2024-11-22 14:23:38,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:23:38,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:23:38,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:23:38,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:23:38,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,544 INFO L175 MemorySlicer]: Split 340 memory accesses to 7 slices as follows [2, 238, 82, 6, 2, 7, 3]. 70 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 6, 10, 0, 1, 5, 1]. The 253 writes are split as follows [0, 232, 17, 2, 1, 0, 1]. [2024-11-22 14:23:38,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:23:38,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:23:38,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:23:38,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:23:38,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (1/1) ... [2024-11-22 14:23:38,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:23:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:38,639 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) [2024-11-22 14:23:38,645 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 [2024-11-22 14:23:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-22 14:23:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-22 14:23:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:23:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:23:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:23:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:23:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:23:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:23:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:23:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 14:23:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:23:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:23:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-22 14:23:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:23:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:23:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:23:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 14:23:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:23:38,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:23:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:23:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:23:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-22 14:23:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-22 14:23:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-22 14:23:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:23:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:23:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:23:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:23:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:23:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:23:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:23:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:23:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 14:23:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-11-22 14:23:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-22 14:23:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:23:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:23:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:23:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:23:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:23:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:23:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:23:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:23:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:23:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:23:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:23:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 14:23:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-11-22 14:23:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-11-22 14:23:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:23:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:23:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:23:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:23:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:23:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:23:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:23:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 14:23:39,059 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:23:39,061 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:23:44,504 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2024-11-22 14:23:44,504 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:23:44,521 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:23:44,521 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-22 14:23:44,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:44 BoogieIcfgContainer [2024-11-22 14:23:44,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:23:44,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:23:44,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:23:44,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:23:44,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:23:36" (1/3) ... [2024-11-22 14:23:44,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0bdb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:44, skipping insertion in model container [2024-11-22 14:23:44,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:38" (2/3) ... [2024-11-22 14:23:44,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0bdb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:44, skipping insertion in model container [2024-11-22 14:23:44,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:44" (3/3) ... [2024-11-22 14:23:44,528 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2024-11-22 14:23:44,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:23:44,541 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:23:44,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:23:44,606 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;@5fa7de1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:23:44,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:23:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-22 14:23:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 14:23:44,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:44,626 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:23:44,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:44,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1327475127, now seen corresponding path program 1 times [2024-11-22 14:23:44,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:44,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609761399] [2024-11-22 14:23:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:44,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:23:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 14:23:49,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:23:49,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609761399] [2024-11-22 14:23:49,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609761399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:23:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797656655] [2024-11-22 14:23:49,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:49,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:23:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:23:49,752 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) [2024-11-22 14:23:49,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:23:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:23:54,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 14:23:54,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:23:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 14:23:54,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:23:54,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797656655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:23:54,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:23:54,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 14:23:54,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927778680] [2024-11-22 14:23:54,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:23:54,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:23:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:23:54,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:23:54,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:23:54,838 INFO L87 Difference]: Start difference. First operand has 208 states, 132 states have (on average 1.2196969696969697) internal successors, (161), 132 states have internal predecessors, (161), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 14:23:54,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:23:54,880 INFO L93 Difference]: Finished difference Result 393 states and 552 transitions. [2024-11-22 14:23:54,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:23:54,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2024-11-22 14:23:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:23:54,889 INFO L225 Difference]: With dead ends: 393 [2024-11-22 14:23:54,890 INFO L226 Difference]: Without dead ends: 203 [2024-11-22 14:23:54,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:23:54,895 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:23:54,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:23:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-22 14:23:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-22 14:23:54,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 128 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-22 14:23:54,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 265 transitions. [2024-11-22 14:23:54,937 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 265 transitions. Word has length 148 [2024-11-22 14:23:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:23:54,938 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 265 transitions. [2024-11-22 14:23:54,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 14:23:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 265 transitions. [2024-11-22 14:23:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 14:23:54,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:23:54,943 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:23:54,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 14:23:55,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 14:23:55,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:23:55,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:23:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash -446309067, now seen corresponding path program 1 times [2024-11-22 14:23:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:23:55,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569953107] [2024-11-22 14:23:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:23:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:23:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:00,225 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-22 14:24:00,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:00,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569953107] [2024-11-22 14:24:00,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569953107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:00,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:00,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 14:24:00,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440088926] [2024-11-22 14:24:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:00,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 14:24:00,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:00,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 14:24:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:24:00,228 INFO L87 Difference]: Start difference. First operand 203 states and 265 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 14:24:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:00,708 INFO L93 Difference]: Finished difference Result 357 states and 466 transitions. [2024-11-22 14:24:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 14:24:00,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 148 [2024-11-22 14:24:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:00,710 INFO L225 Difference]: With dead ends: 357 [2024-11-22 14:24:00,711 INFO L226 Difference]: Without dead ends: 203 [2024-11-22 14:24:00,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 14:24:00,712 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 19 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:00,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 946 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 14:24:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-22 14:24:00,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-22 14:24:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 127 states have (on average 1.188976377952756) internal successors, (151), 128 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-22 14:24:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2024-11-22 14:24:00,725 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 148 [2024-11-22 14:24:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:00,726 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2024-11-22 14:24:00,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 14:24:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2024-11-22 14:24:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 14:24:00,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:00,728 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:00,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 14:24:00,728 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:00,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1083989423, now seen corresponding path program 1 times [2024-11-22 14:24:00,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:00,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969339005] [2024-11-22 14:24:00,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:00,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-22 14:24:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:06,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969339005] [2024-11-22 14:24:06,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969339005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:24:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561685407] [2024-11-22 14:24:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:06,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:06,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:24:06,216 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) [2024-11-22 14:24:06,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:24:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:11,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 4625 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:24:11,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 14:24:12,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:24:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561685407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:12,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:24:12,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 14:24:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283803276] [2024-11-22 14:24:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:12,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:24:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:24:12,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 14:24:12,742 INFO L87 Difference]: Start difference. First operand 203 states and 264 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-22 14:24:16,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:16,636 INFO L93 Difference]: Finished difference Result 376 states and 498 transitions. [2024-11-22 14:24:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 14:24:16,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 156 [2024-11-22 14:24:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:16,640 INFO L225 Difference]: With dead ends: 376 [2024-11-22 14:24:16,640 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:16,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-22 14:24:16,643 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 282 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:16,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 14:24:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:16,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1875) internal successors, (152), 130 states have internal predecessors, (152), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-22 14:24:16,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2024-11-22 14:24:16,665 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 271 transitions. Word has length 156 [2024-11-22 14:24:16,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:16,665 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 271 transitions. [2024-11-22 14:24:16,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-22 14:24:16,666 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 271 transitions. [2024-11-22 14:24:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 14:24:16,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:16,667 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:16,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 14:24:16,868 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 [2024-11-22 14:24:16,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:16,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:16,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1896012215, now seen corresponding path program 1 times [2024-11-22 14:24:16,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429033757] [2024-11-22 14:24:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:16,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-22 14:24:22,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:22,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429033757] [2024-11-22 14:24:22,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429033757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:22,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:22,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 14:24:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313105736] [2024-11-22 14:24:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:22,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:24:22,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:24:22,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:22,017 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:24:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:22,951 INFO L93 Difference]: Finished difference Result 362 states and 479 transitions. [2024-11-22 14:24:22,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:24:22,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2024-11-22 14:24:22,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:22,956 INFO L225 Difference]: With dead ends: 362 [2024-11-22 14:24:22,956 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:22,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 14:24:22,957 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:22,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1142 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 14:24:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-22 14:24:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2024-11-22 14:24:22,977 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 171 [2024-11-22 14:24:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:22,978 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2024-11-22 14:24:22,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-22 14:24:22,978 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2024-11-22 14:24:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-22 14:24:22,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:22,980 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:22,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 14:24:22,980 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:22,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1822656142, now seen corresponding path program 1 times [2024-11-22 14:24:22,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:22,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403699051] [2024-11-22 14:24:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:22,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-22 14:24:28,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403699051] [2024-11-22 14:24:28,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403699051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:24:28,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252008525] [2024-11-22 14:24:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:28,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:28,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:24:28,382 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) [2024-11-22 14:24:28,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:24:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:24:33,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 4824 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 14:24:33,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:24:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 14:24:35,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:24:35,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252008525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:35,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:24:35,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2024-11-22 14:24:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205150579] [2024-11-22 14:24:35,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:35,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 14:24:35,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 14:24:35,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-22 14:24:35,158 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 14:24:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:39,696 INFO L93 Difference]: Finished difference Result 375 states and 496 transitions. [2024-11-22 14:24:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 14:24:39,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 187 [2024-11-22 14:24:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:39,698 INFO L225 Difference]: With dead ends: 375 [2024-11-22 14:24:39,698 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 14:24:39,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-22 14:24:39,700 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 316 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:39,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1331 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-22 14:24:39,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 14:24:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-22 14:24:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.1796875) internal successors, (151), 130 states have internal predecessors, (151), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-22 14:24:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 269 transitions. [2024-11-22 14:24:39,711 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 269 transitions. Word has length 187 [2024-11-22 14:24:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:39,712 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 269 transitions. [2024-11-22 14:24:39,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 14:24:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 269 transitions. [2024-11-22 14:24:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 14:24:39,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:39,714 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:39,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 14:24:39,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:24:39,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:39,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:39,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1465652904, now seen corresponding path program 2 times [2024-11-22 14:24:39,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:39,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769245606] [2024-11-22 14:24:39,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 14:24:39,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:44,212 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 14:24:44,212 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 14:24:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-22 14:24:45,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:24:45,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769245606] [2024-11-22 14:24:45,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769245606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:24:45,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:24:45,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 14:24:45,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946617964] [2024-11-22 14:24:45,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:24:45,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:24:45,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:24:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:24:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 14:24:45,533 INFO L87 Difference]: Start difference. First operand 205 states and 269 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-22 14:24:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:24:47,277 INFO L93 Difference]: Finished difference Result 347 states and 461 transitions. [2024-11-22 14:24:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 14:24:47,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 202 [2024-11-22 14:24:47,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:24:47,281 INFO L225 Difference]: With dead ends: 347 [2024-11-22 14:24:47,281 INFO L226 Difference]: Without dead ends: 218 [2024-11-22 14:24:47,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 14:24:47,284 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 40 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 14:24:47,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1581 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 14:24:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-22 14:24:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-11-22 14:24:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 136 states have internal predecessors, (158), 62 states have call successors, (62), 19 states have call predecessors, (62), 20 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2024-11-22 14:24:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 286 transitions. [2024-11-22 14:24:47,294 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 286 transitions. Word has length 202 [2024-11-22 14:24:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:24:47,295 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 286 transitions. [2024-11-22 14:24:47,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-22 14:24:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 286 transitions. [2024-11-22 14:24:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-22 14:24:47,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:24:47,297 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:24:47,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 14:24:47,297 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:24:47,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:24:47,298 INFO L85 PathProgramCache]: Analyzing trace with hash 611744004, now seen corresponding path program 1 times [2024-11-22 14:24:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:24:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229786297] [2024-11-22 14:24:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:24:47,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:24:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat