./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_array_list_back_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 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:57:40,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:57:40,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 13:57:40,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:57:40,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:57:40,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:57:40,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:57:40,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:57:40,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:57:40,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:57:40,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:57:40,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:57:40,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:57:40,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:57:40,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:57:40,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:57:40,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:57:40,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:57:40,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:57:40,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:57:40,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:57:40,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:57:40,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:57:40,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:57:40,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:57:40,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:57:40,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:57:40,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:57:40,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:57:40,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:57:40,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:57:40,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:57:40,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:57:40,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:57:40,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:57:40,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:57:40,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:57:40,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:57:40,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:57:40,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2279e66d659d6de4a6f1e9cba0e3ed135a3304882c70e550497f0feeaae371b4 [2024-11-22 13:57:40,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:57:40,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:57:40,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:57:40,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:57:40,792 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:57:40,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-22 13:57:42,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:57:42,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:57:42,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2024-11-22 13:57:42,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f78cc88/13f15d66392d4b33ad3e55caeac5868b/FLAG114782859 [2024-11-22 13:57:42,846 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f78cc88/13f15d66392d4b33ad3e55caeac5868b [2024-11-22 13:57:42,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:57:42,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:57:42,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:57:42,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:57:42,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:57:42,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:42" (1/1) ... [2024-11-22 13:57:42,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc00831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:42, skipping insertion in model container [2024-11-22 13:57:42,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:42" (1/1) ... [2024-11-22 13:57:42,986 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:57:43,244 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_back_harness.i[4493,4506] [2024-11-22 13:57:43,252 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_back_harness.i[4553,4566] [2024-11-22 13:57:43,930 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,931 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,932 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,933 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,934 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,945 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,946 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,947 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,948 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,949 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,950 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,950 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:43,950 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,374 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,385 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:57:44,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:57:44,477 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_back_harness.i[4493,4506] [2024-11-22 13:57:44,481 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_back_harness.i[4553,4566] [2024-11-22 13:57:44,541 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,543 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,543 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,549 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,550 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,550 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,551 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,551 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,552 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,552 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,552 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,630 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,634 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:57:44,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-11-22 13:57:44,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:57:45,008 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:57:45,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45 WrapperNode [2024-11-22 13:57:45,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:57:45,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:57:45,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:57:45,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:57:45,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,190 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2024-11-22 13:57:45,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:57:45,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:57:45,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:57:45,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:57:45,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,222 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,362 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 6, 3, 55, 9]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 1, 10, 5]. The 239 writes are split as follows [232, 0, 2, 1, 3, 1]. [2024-11-22 13:57:45,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:57:45,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:57:45,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:57:45,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:57:45,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (1/1) ... [2024-11-22 13:57:45,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:57:45,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:57:45,476 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 13:57:45,478 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 13:57:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 13:57:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 13:57:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 13:57:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 13:57:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:57:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 13:57:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 13:57:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 13:57:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-22 13:57:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:57:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 13:57:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-22 13:57:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-22 13:57:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-22 13:57:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 13:57:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 13:57:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 13:57:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 13:57:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-22 13:57:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-22 13:57:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-22 13:57:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 13:57:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-22 13:57:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 13:57:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 13:57:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 13:57:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:57:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 13:57:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 13:57:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 13:57:45,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:57:45,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:57:52,247 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-22 13:57:52,247 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:57:52,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:57:52,269 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 13:57:52,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:52 BoogieIcfgContainer [2024-11-22 13:57:52,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:57:52,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:57:52,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:57:52,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:57:52,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:57:42" (1/3) ... [2024-11-22 13:57:52,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70baec0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:52, skipping insertion in model container [2024-11-22 13:57:52,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:45" (2/3) ... [2024-11-22 13:57:52,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70baec0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:52, skipping insertion in model container [2024-11-22 13:57:52,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:52" (3/3) ... [2024-11-22 13:57:52,280 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2024-11-22 13:57:52,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:57:52,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:57:52,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:57:52,379 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;@7c5c53af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:57:52,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 13:57:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-22 13:57:52,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 13:57:52,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:57:52,399 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:57:52,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:57:52,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:57:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash -357183169, now seen corresponding path program 1 times [2024-11-22 13:57:52,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:57:52,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972708397] [2024-11-22 13:57:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:57:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:57:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:57:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-22 13:57:58,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:57:58,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972708397] [2024-11-22 13:57:58,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972708397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:57:58,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729710064] [2024-11-22 13:57:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:57:58,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:57:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:57:58,079 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 13:57:58,082 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 13:58:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:03,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 13:58:03,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:58:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-22 13:58:03,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:58:03,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729710064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:03,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:58:03,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 13:58:03,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178777287] [2024-11-22 13:58:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:03,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 13:58:03,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 13:58:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:58:03,718 INFO L87 Difference]: Start difference. First operand has 186 states, 112 states have (on average 1.2053571428571428) internal successors, (135), 113 states have internal predecessors, (135), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 13:58:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:03,763 INFO L93 Difference]: Finished difference Result 365 states and 518 transitions. [2024-11-22 13:58:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 13:58:03,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2024-11-22 13:58:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:03,776 INFO L225 Difference]: With dead ends: 365 [2024-11-22 13:58:03,777 INFO L226 Difference]: Without dead ends: 177 [2024-11-22 13:58:03,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 13:58:03,783 INFO L432 NwaCegarLoop]: 242 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, 242 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 13:58:03,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:58:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-22 13:58:03,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-22 13:58:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.161904761904762) internal successors, (122), 106 states have internal predecessors, (122), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-22 13:58:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 230 transitions. [2024-11-22 13:58:03,831 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 230 transitions. Word has length 129 [2024-11-22 13:58:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:03,832 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 230 transitions. [2024-11-22 13:58:03,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 13:58:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 230 transitions. [2024-11-22 13:58:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 13:58:03,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:03,835 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:58:03,850 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 13:58:04,036 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 13:58:04,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:04,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -298153149, now seen corresponding path program 1 times [2024-11-22 13:58:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:04,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474273672] [2024-11-22 13:58:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:58:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-22 13:58:09,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:58:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474273672] [2024-11-22 13:58:09,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474273672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:58:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722350302] [2024-11-22 13:58:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:09,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:58:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:58:09,860 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 13:58:09,862 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 13:58:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:15,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 13:58:15,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:58:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 13:58:15,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:58:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722350302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:58:15,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 13:58:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136935975] [2024-11-22 13:58:15,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:15,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:58:15,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:58:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:58:15,787 INFO L87 Difference]: Start difference. First operand 177 states and 230 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 13:58:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:18,119 INFO L93 Difference]: Finished difference Result 327 states and 431 transitions. [2024-11-22 13:58:18,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:58:18,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2024-11-22 13:58:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:18,124 INFO L225 Difference]: With dead ends: 327 [2024-11-22 13:58:18,124 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 13:58:18,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:58:18,126 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 242 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:58:18,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 658 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-22 13:58:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 13:58:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-22 13:58:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-22 13:58:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2024-11-22 13:58:18,148 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 236 transitions. Word has length 129 [2024-11-22 13:58:18,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:18,149 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 236 transitions. [2024-11-22 13:58:18,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 13:58:18,149 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 236 transitions. [2024-11-22 13:58:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 13:58:18,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:18,156 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 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] [2024-11-22 13:58:18,174 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 13:58:18,356 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,SelfDestructingSolverStorable1 [2024-11-22 13:58:18,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:18,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1469361281, now seen corresponding path program 1 times [2024-11-22 13:58:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:18,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008623672] [2024-11-22 13:58:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:58:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-22 13:58:24,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:58:24,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008623672] [2024-11-22 13:58:24,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008623672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:58:24,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363390627] [2024-11-22 13:58:24,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:24,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:58:24,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:58:24,057 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 13:58:24,059 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 13:58:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:28,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 4516 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 13:58:28,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:58:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-22 13:58:30,030 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:58:30,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363390627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:30,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:58:30,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-22 13:58:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639241222] [2024-11-22 13:58:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:30,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:58:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:30,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:58:30,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:58:30,032 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:32,782 INFO L93 Difference]: Finished difference Result 289 states and 381 transitions. [2024-11-22 13:58:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:58:32,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 159 [2024-11-22 13:58:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:32,787 INFO L225 Difference]: With dead ends: 289 [2024-11-22 13:58:32,787 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 13:58:32,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-22 13:58:32,789 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 245 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:58:32,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 815 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 13:58:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 13:58:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-22 13:58:32,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 108 states have internal predecessors, (123), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-11-22 13:58:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2024-11-22 13:58:32,809 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 159 [2024-11-22 13:58:32,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:32,809 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2024-11-22 13:58:32,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2024-11-22 13:58:32,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 13:58:32,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:32,812 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:58:32,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 13:58:33,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:58:33,013 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:33,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1115773871, now seen corresponding path program 2 times [2024-11-22 13:58:33,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:33,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628474499] [2024-11-22 13:58:33,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:58:33,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:58:37,533 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 13:58:37,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:58:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-22 13:58:39,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:58:39,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628474499] [2024-11-22 13:58:39,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628474499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:39,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:58:39,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:58:39,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121582217] [2024-11-22 13:58:39,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:39,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:58:39,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:58:39,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:58:39,286 INFO L87 Difference]: Start difference. First operand 179 states and 233 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:40,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:40,843 INFO L93 Difference]: Finished difference Result 283 states and 368 transitions. [2024-11-22 13:58:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:58:40,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 174 [2024-11-22 13:58:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:40,846 INFO L225 Difference]: With dead ends: 283 [2024-11-22 13:58:40,846 INFO L226 Difference]: Without dead ends: 177 [2024-11-22 13:58:40,847 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 13:58:40,848 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 57 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:58:40,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1333 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 13:58:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-22 13:58:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-22 13:58:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 105 states have (on average 1.1523809523809523) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-22 13:58:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 229 transitions. [2024-11-22 13:58:40,872 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 229 transitions. Word has length 174 [2024-11-22 13:58:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:40,873 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 229 transitions. [2024-11-22 13:58:40,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 229 transitions. [2024-11-22 13:58:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 13:58:40,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:40,876 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:58:40,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:58:40,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:40,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:40,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1453894743, now seen corresponding path program 1 times [2024-11-22 13:58:40,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571357656] [2024-11-22 13:58:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:40,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:58:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-22 13:58:47,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:58:47,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571357656] [2024-11-22 13:58:47,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571357656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:47,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:58:47,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:58:47,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993920226] [2024-11-22 13:58:47,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:47,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:58:47,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:47,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:58:47,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:58:47,189 INFO L87 Difference]: Start difference. First operand 177 states and 229 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 13:58:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:47,639 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2024-11-22 13:58:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:58:47,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 204 [2024-11-22 13:58:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:47,642 INFO L225 Difference]: With dead ends: 306 [2024-11-22 13:58:47,642 INFO L226 Difference]: Without dead ends: 195 [2024-11-22 13:58:47,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:58:47,644 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 6 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:58:47,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1338 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:58:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-22 13:58:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2024-11-22 13:58:47,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 115 states have internal predecessors, (131), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (58), 58 states have call predecessors, (58), 57 states have call successors, (58) [2024-11-22 13:58:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2024-11-22 13:58:47,659 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 204 [2024-11-22 13:58:47,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:47,660 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2024-11-22 13:58:47,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 13:58:47,660 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2024-11-22 13:58:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 13:58:47,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:47,663 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:58:47,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:58:47,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:47,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1810031655, now seen corresponding path program 1 times [2024-11-22 13:58:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:47,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135426454] [2024-11-22 13:58:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:47,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:58:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:58:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-22 13:58:54,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:58:54,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135426454] [2024-11-22 13:58:54,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135426454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:58:54,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:58:54,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:58:54,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818578817] [2024-11-22 13:58:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:58:54,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:58:54,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:58:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:58:54,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:58:54,458 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:58:55,119 INFO L93 Difference]: Finished difference Result 321 states and 422 transitions. [2024-11-22 13:58:55,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:58:55,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 204 [2024-11-22 13:58:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:58:55,123 INFO L225 Difference]: With dead ends: 321 [2024-11-22 13:58:55,123 INFO L226 Difference]: Without dead ends: 216 [2024-11-22 13:58:55,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:58:55,125 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 14 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 13:58:55,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1609 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 13:58:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-22 13:58:55,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 197. [2024-11-22 13:58:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 117 states have (on average 1.1452991452991452) internal successors, (134), 118 states have internal predecessors, (134), 62 states have call successors, (62), 17 states have call predecessors, (62), 17 states have return successors, (61), 61 states have call predecessors, (61), 60 states have call successors, (61) [2024-11-22 13:58:55,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 257 transitions. [2024-11-22 13:58:55,148 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 257 transitions. Word has length 204 [2024-11-22 13:58:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:58:55,148 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 257 transitions. [2024-11-22 13:58:55,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 13:58:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 257 transitions. [2024-11-22 13:58:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 13:58:55,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:58:55,153 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:58:55,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:58:55,153 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:58:55,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:58:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1752968215, now seen corresponding path program 1 times [2024-11-22 13:58:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:58:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305996945] [2024-11-22 13:58:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:58:55,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:59:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat