./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.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 f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:03:27,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:03:27,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:03:27,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:03:27,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:03:27,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:03:27,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:03:27,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:03:27,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:03:27,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:03:27,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:03:27,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:03:27,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:03:27,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:03:27,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:03:27,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:03:27,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:03:27,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:03:27,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:03:27,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:03:27,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:03:27,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:03:27,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:03:27,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:03:27,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:03:27,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:03:27,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:03:27,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:03:27,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:03:27,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:03:27,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:03:27,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:03:27,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:03:27,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:03:27,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:03:27,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:03:27,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:03:27,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:03:27,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:03:27,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2024-11-19 02:03:27,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:03:27,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:03:27,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:03:27,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:03:27,677 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:03:27,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2024-11-19 02:03:29,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:03:29,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:03:29,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2024-11-19 02:03:29,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7af9e48e/e0de35b7e9594f5fa0307ad3a28b9452/FLAG2860a1b9f [2024-11-19 02:03:29,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7af9e48e/e0de35b7e9594f5fa0307ad3a28b9452 [2024-11-19 02:03:29,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:03:29,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:03:29,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:03:29,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:03:29,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:03:29,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:29" (1/1) ... [2024-11-19 02:03:29,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602045df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:29, skipping insertion in model container [2024-11-19 02:03:29,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:29" (1/1) ... [2024-11-19 02:03:29,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:03:30,228 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_swap_harness_negated.i[4493,4506] [2024-11-19 02:03:30,237 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_swap_harness_negated.i[4553,4566] [2024-11-19 02:03:31,263 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,264 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,264 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,265 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,266 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,279 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,283 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,283 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,285 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,286 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,287 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,287 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,623 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,624 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,629 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,635 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:03:31,738 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:03:31,759 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_swap_harness_negated.i[4493,4506] [2024-11-19 02:03:31,762 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_swap_harness_negated.i[4553,4566] [2024-11-19 02:03:31,837 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,838 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,838 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,838 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,839 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,845 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,848 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,849 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,849 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,850 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,935 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,939 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,940 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,944 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-19 02:03:31,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2024-11-19 02:03:31,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:03:32,295 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:03:32,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32 WrapperNode [2024-11-19 02:03:32,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:03:32,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:03:32,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:03:32,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:03:32,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,476 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-11-19 02:03:32,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:03:32,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:03:32,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:03:32,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:03:32,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,642 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 39, 5, 3, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 5, 2, 1, 5]. The 238 writes are split as follows [232, 0, 1, 3, 1, 1, 0]. [2024-11-19 02:03:32,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:03:32,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:03:32,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:03:32,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:03:32,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (1/1) ... [2024-11-19 02:03:32,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:03:32,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:32,780 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) [2024-11-19 02:03:32,785 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 [2024-11-19 02:03:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:03:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-19 02:03:32,826 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-19 02:03:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-19 02:03:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-19 02:03:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-19 02:03:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-19 02:03:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:03:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 02:03:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-19 02:03:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-19 02:03:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 02:03:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 02:03:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:03:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:03:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:03:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:03:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:03:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:03:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:03:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:03:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 02:03:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-19 02:03:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-19 02:03:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:03:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:03:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-19 02:03:32,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-19 02:03:32,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:03:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-19 02:03:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 02:03:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-19 02:03:32,835 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:03:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-19 02:03:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-19 02:03:32,836 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-19 02:03:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-19 02:03:32,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:03:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:03:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 02:03:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:32,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-19 02:03:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:03:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:03:32,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:03:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:03:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:03:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:03:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 02:03:33,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:03:33,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:03:39,597 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-19 02:03:39,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:03:39,620 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:03:39,620 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 02:03:39,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:39 BoogieIcfgContainer [2024-11-19 02:03:39,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:03:39,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:03:39,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:03:39,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:03:39,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:29" (1/3) ... [2024-11-19 02:03:39,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5306c6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:39, skipping insertion in model container [2024-11-19 02:03:39,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:32" (2/3) ... [2024-11-19 02:03:39,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5306c6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:39, skipping insertion in model container [2024-11-19 02:03:39,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:39" (3/3) ... [2024-11-19 02:03:39,633 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2024-11-19 02:03:39,649 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:03:39,649 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:03:39,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:03:39,728 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;@416368aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:03:39,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:03:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 02:03:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 02:03:39,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:39,748 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:39,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:39,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:39,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1076027669, now seen corresponding path program 1 times [2024-11-19 02:03:39,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:39,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099702528] [2024-11-19 02:03:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 02:03:45,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:45,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099702528] [2024-11-19 02:03:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099702528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:45,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020780413] [2024-11-19 02:03:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:45,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:45,798 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) [2024-11-19 02:03:45,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 02:03:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:51,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 02:03:51,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:03:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-19 02:03:51,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:03:51,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020780413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:03:51,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:03:51,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 02:03:51,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044177213] [2024-11-19 02:03:51,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:03:51,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 02:03:51,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:03:51,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 02:03:51,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:03:51,823 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 02:03:51,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:03:51,870 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2024-11-19 02:03:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 02:03:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2024-11-19 02:03:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:03:51,881 INFO L225 Difference]: With dead ends: 353 [2024-11-19 02:03:51,881 INFO L226 Difference]: Without dead ends: 175 [2024-11-19 02:03:51,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 02:03:51,892 INFO L432 NwaCegarLoop]: 238 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, 238 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 [2024-11-19 02:03:51,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 02:03:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-19 02:03:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-19 02:03:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 02:03:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2024-11-19 02:03:51,953 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2024-11-19 02:03:51,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:03:51,953 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2024-11-19 02:03:51,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-19 02:03:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2024-11-19 02:03:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 02:03:51,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:03:51,959 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:03:51,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 02:03:52,160 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 [2024-11-19 02:03:52,161 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:03:52,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:03:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1936245199, now seen corresponding path program 1 times [2024-11-19 02:03:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:03:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15023370] [2024-11-19 02:03:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:03:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:03:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 02:03:57,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:03:57,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15023370] [2024-11-19 02:03:57,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15023370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:03:57,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200751744] [2024-11-19 02:03:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:03:57,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:03:57,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:03:57,634 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) [2024-11-19 02:03:57,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 02:04:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:02,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 02:04:02,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:04:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-19 02:04:03,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:04:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200751744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:04:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-19 02:04:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190321670] [2024-11-19 02:04:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:03,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:04:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:04:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 02:04:03,608 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 02:04:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:06,050 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2024-11-19 02:04:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:04:06,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-19 02:04:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:06,056 INFO L225 Difference]: With dead ends: 315 [2024-11-19 02:04:06,056 INFO L226 Difference]: Without dead ends: 177 [2024-11-19 02:04:06,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-19 02:04:06,059 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 238 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:06,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 666 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 02:04:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-19 02:04:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-19 02:04:06,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-19 02:04:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2024-11-19 02:04:06,081 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2024-11-19 02:04:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:06,081 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2024-11-19 02:04:06,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-19 02:04:06,081 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2024-11-19 02:04:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 02:04:06,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:06,084 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:06,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 02:04:06,285 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 [2024-11-19 02:04:06,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:06,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash 929841439, now seen corresponding path program 1 times [2024-11-19 02:04:06,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:06,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438151381] [2024-11-19 02:04:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:06,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:12,117 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-19 02:04:12,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:04:12,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438151381] [2024-11-19 02:04:12,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438151381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 02:04:12,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671669836] [2024-11-19 02:04:12,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:12,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:04:12,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:04:12,120 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) [2024-11-19 02:04:12,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 02:04:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:04:17,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 02:04:17,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 02:04:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 02:04:18,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 02:04:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671669836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:04:18,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 02:04:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-19 02:04:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238847715] [2024-11-19 02:04:18,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:04:18,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 02:04:18,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:04:18,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 02:04:18,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 02:04:18,381 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 02:04:22,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:04:22,575 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2024-11-19 02:04:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 02:04:22,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-19 02:04:22,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:04:22,578 INFO L225 Difference]: With dead ends: 326 [2024-11-19 02:04:22,578 INFO L226 Difference]: Without dead ends: 189 [2024-11-19 02:04:22,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-19 02:04:22,581 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 258 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-19 02:04:22,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 993 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-19 02:04:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-19 02:04:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-19 02:04:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-19 02:04:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2024-11-19 02:04:22,602 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2024-11-19 02:04:22,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:04:22,602 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2024-11-19 02:04:22,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 02:04:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2024-11-19 02:04:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 02:04:22,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:04:22,605 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:04:22,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 02:04:22,806 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 [2024-11-19 02:04:22,807 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:04:22,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:04:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2047267727, now seen corresponding path program 1 times [2024-11-19 02:04:22,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:04:22,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264788491] [2024-11-19 02:04:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:22,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:04:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 02:04:32,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209001250] [2024-11-19 02:04:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:04:32,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 02:04:32,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:04:32,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 02:04:32,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process