./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_byte_cursor_compare_lookup_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 e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:51:18,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:51:18,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:51:18,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:51:18,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:51:18,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:51:18,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:51:18,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:51:18,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:51:18,323 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:51:18,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:51:18,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:51:18,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:51:18,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:51:18,325 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:51:18,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:51:18,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:51:18,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:51:18,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:51:18,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:51:18,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:51:18,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:51:18,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:51:18,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:51:18,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:51:18,328 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:51:18,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:51:18,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:51:18,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:51:18,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:18,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:51:18,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:51:18,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:51:18,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:51:18,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:51:18,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:51:18,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:51:18,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:51:18,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:51:18,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e75e79bb7da52b492a2e3ddc8479f7ccf1edef9ee409c71a9e1468a3f8e14895 [2024-11-16 19:51:18,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:51:18,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:51:18,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:51:18,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:51:18,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:51:18,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2024-11-16 19:51:20,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:51:20,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:51:20,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2024-11-16 19:51:20,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9dbaba85/41e4b3c6b0384232bcc78c8e86a24d30/FLAG61aa406bd [2024-11-16 19:51:20,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9dbaba85/41e4b3c6b0384232bcc78c8e86a24d30 [2024-11-16 19:51:20,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:51:20,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:51:20,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:20,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:51:20,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:51:20,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:20" (1/1) ... [2024-11-16 19:51:20,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627bf0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:20, skipping insertion in model container [2024-11-16 19:51:20,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:20" (1/1) ... [2024-11-16 19:51:21,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:51:21,235 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_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2024-11-16 19:51:21,241 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_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2024-11-16 19:51:21,718 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,718 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,719 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,719 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,720 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,731 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,732 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,733 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:21,733 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,126 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,127 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:22,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:51:22,258 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_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2024-11-16 19:51:22,262 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_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2024-11-16 19:51:22,365 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,367 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,375 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,375 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,376 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,376 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-16 19:51:22,483 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,483 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:22,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-16 19:51:22,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:22,672 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:51:22,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22 WrapperNode [2024-11-16 19:51:22,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:22,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:22,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:51:22,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:51:22,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,821 INFO L138 Inliner]: procedures = 680, calls = 2647, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 835 [2024-11-16 19:51:22,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:22,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:51:22,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:51:22,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:51:22,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,893 INFO L175 MemorySlicer]: Split 548 memory accesses to 8 slices as follows [2, 257, 238, 2, 6, 34, 4, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 0, 0, 4, 0, 5]. The 494 writes are split as follows [0, 257, 232, 0, 2, 3, 0, 0]. [2024-11-16 19:51:22,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:51:22,940 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:51:22,940 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:51:22,940 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:51:22,941 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (1/1) ... [2024-11-16 19:51:22,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:51:22,967 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) [2024-11-16 19:51:22,968 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 [2024-11-16 19:51:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:51:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:51:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:51:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:51:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:51:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:51:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:51:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:51:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-16 19:51:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:51:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 19:51:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:51:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:51:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:51:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:51:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-16 19:51:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:51:23,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:51:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:51:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:51:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:51:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:51:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 19:51:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:23,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2024-11-16 19:51:23,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:51:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 19:51:23,336 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:51:23,338 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:51:23,371 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:51:23,404 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:51:23,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6657: havoc #t~mem509; [2024-11-16 19:51:23,425 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:51:23,451 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7363: havoc #t~mem694;havoc #t~mem695;havoc #t~mem696.base, #t~mem696.offset;havoc #t~short697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~short701;havoc #t~short702;havoc #t~short703; [2024-11-16 19:51:30,328 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-16 19:51:30,328 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:51:30,338 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:51:30,338 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:51:30,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:30 BoogieIcfgContainer [2024-11-16 19:51:30,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:51:30,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:51:30,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:51:30,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:51:30,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:51:20" (1/3) ... [2024-11-16 19:51:30,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:30, skipping insertion in model container [2024-11-16 19:51:30,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:22" (2/3) ... [2024-11-16 19:51:30,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:30, skipping insertion in model container [2024-11-16 19:51:30,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:30" (3/3) ... [2024-11-16 19:51:30,347 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness_negated.i [2024-11-16 19:51:30,369 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:51:30,369 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:51:30,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:51:30,435 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;@706dc5c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:51:30,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:51:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 83 states have internal predecessors, (103), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-16 19:51:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 19:51:30,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:51:30,453 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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] [2024-11-16 19:51:30,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:51:30,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:51:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash 926221867, now seen corresponding path program 1 times [2024-11-16 19:51:30,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:51:30,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526160804] [2024-11-16 19:51:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:51:30,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:52:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:46,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:52:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:46,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:52:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:52:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:52:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 19:52:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 19:52:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:52:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 19:52:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 19:52:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 19:52:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 19:52:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 19:52:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 19:52:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 19:52:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 19:52:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-16 19:52:47,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:52:47,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526160804] [2024-11-16 19:52:47,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526160804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:52:47,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:52:47,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:52:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946918145] [2024-11-16 19:52:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:52:47,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:52:47,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:52:47,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:52:47,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:52:47,266 INFO L87 Difference]: Start difference. First operand has 135 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 83 states have internal predecessors, (103), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 19:52:51,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:52:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:52:54,665 INFO L93 Difference]: Finished difference Result 268 states and 394 transitions. [2024-11-16 19:52:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:52:54,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2024-11-16 19:52:54,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:52:54,674 INFO L225 Difference]: With dead ends: 268 [2024-11-16 19:52:54,674 INFO L226 Difference]: Without dead ends: 131 [2024-11-16 19:52:54,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:52:54,680 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 134 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-16 19:52:54,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 126 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-16 19:52:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-16 19:52:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-16 19:52:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 77 states have internal predecessors, (93), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 19:52:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2024-11-16 19:52:54,715 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 95 [2024-11-16 19:52:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:52:54,715 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2024-11-16 19:52:54,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 19:52:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2024-11-16 19:52:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 19:52:54,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:52:54,719 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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] [2024-11-16 19:52:54,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:52:54,723 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:52:54,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:52:54,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1398190519, now seen corresponding path program 1 times [2024-11-16 19:52:54,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:52:54,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522753619] [2024-11-16 19:52:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:52:54,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms