./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.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_lexical_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa640d76b01d20471995032e33acbe8cd362fa74ac26bb02247b6be5b51a4b6c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:51:02,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:51:02,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:51:02,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:51:03,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:51:03,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:51:03,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:51:03,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:51:03,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:51:03,035 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:51:03,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:51:03,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:51:03,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:51:03,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:51:03,037 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:51:03,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:51:03,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:51:03,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:51:03,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:51:03,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:51:03,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:51:03,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:51:03,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:51:03,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:51:03,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:51:03,044 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:51:03,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:51:03,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:51:03,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:51:03,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:03,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:51:03,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:51:03,045 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:51:03,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:51:03,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:51:03,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:51:03,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:51:03,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:51:03,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:51:03,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa640d76b01d20471995032e33acbe8cd362fa74ac26bb02247b6be5b51a4b6c [2024-11-16 19:51:03,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:51:03,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:51:03,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:51:03,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:51:03,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:51:03,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2024-11-16 19:51:04,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:51:05,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:51:05,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness.i [2024-11-16 19:51:05,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f3946bc/f8a30a476fca444c9ede491faac0fdb9/FLAGc61076f45 [2024-11-16 19:51:05,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0f3946bc/f8a30a476fca444c9ede491faac0fdb9 [2024-11-16 19:51:05,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:51:05,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:51:05,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:05,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:51:05,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:51:05,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:05" (1/1) ... [2024-11-16 19:51:05,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414913b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:05, skipping insertion in model container [2024-11-16 19:51:05,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:51:05" (1/1) ... [2024-11-16 19:51:05,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:51:05,730 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_lexical_harness.i[4505,4518] [2024-11-16 19:51:05,740 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_lexical_harness.i[4565,4578] [2024-11-16 19:51:06,469 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,472 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,474 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,475 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,476 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,494 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,495 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,496 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:06,497 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,015 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,016 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:07,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:51:07,194 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_lexical_harness.i[4505,4518] [2024-11-16 19:51:07,195 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_lexical_harness.i[4565,4578] [2024-11-16 19:51:07,224 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,225 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,225 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,225 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,226 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,230 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,231 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,231 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,232 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-16 19:51:07,422 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,423 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:51:07,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-16 19:51:07,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:51:07,687 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:51:07,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07 WrapperNode [2024-11-16 19:51:07,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:51:07,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:07,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:51:07,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:51:07,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:07,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:07,884 INFO L138 Inliner]: procedures = 680, calls = 2654, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 928 [2024-11-16 19:51:07,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:51:07,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:51:07,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:51:07,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:51:07,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:07,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:07,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,008 INFO L175 MemorySlicer]: Split 558 memory accesses to 7 slices as follows [2, 257, 238, 46, 4, 6, 5]. 46 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 4, 0, 0, 5]. The 494 writes are split as follows [0, 257, 232, 3, 0, 2, 0]. [2024-11-16 19:51:08,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,055 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:51:08,099 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:51:08,099 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:51:08,100 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:51:08,101 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (1/1) ... [2024-11-16 19:51:08,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:51:08,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:51:08,138 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 19:51:08,144 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 19:51:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2024-11-16 19:51:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:51:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:51:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:51:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:51:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:51:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:51:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-16 19:51:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:51:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:51:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:51:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:51:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-16 19:51:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-16 19:51:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:51:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:51:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:51:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:51:08,201 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:51:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:51:08,201 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:08,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:51:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:51:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 19:51:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:51:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:51:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:51:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 19:51:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:51:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:51:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:51:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-16 19:51:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:51:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:51:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:51:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:51:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:51:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:51:08,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:51:08,545 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:51:08,550 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:51:08,589 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:51:08,619 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:51:08,633 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:51:08,639 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc #t~mem509; [2024-11-16 19:51:08,658 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:51:08,693 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7395: 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 19:51:08,731 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8144: havoc #t~mem1032#1; [2024-11-16 19:51:08,731 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7333: havoc memcmp_safe_#t~nondet655#1; [2024-11-16 19:51:16,498 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-16 19:51:16,498 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:51:16,515 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:51:16,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:51:16,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:16 BoogieIcfgContainer [2024-11-16 19:51:16,517 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:51:16,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:51:16,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:51:16,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:51:16,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:51:05" (1/3) ... [2024-11-16 19:51:16,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706ea518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:16, skipping insertion in model container [2024-11-16 19:51:16,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:51:07" (2/3) ... [2024-11-16 19:51:16,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706ea518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:51:16, skipping insertion in model container [2024-11-16 19:51:16,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:51:16" (3/3) ... [2024-11-16 19:51:16,528 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness.i [2024-11-16 19:51:16,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:51:16,559 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:51:16,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:51:16,638 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;@71e92c47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:51:16,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:51:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-16 19:51:16,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 19:51:16,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:51:16,662 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:51:16,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:51:16,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:51:16,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1485607862, now seen corresponding path program 1 times [2024-11-16 19:51:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:51:16,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997507052] [2024-11-16 19:51:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:51:16,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:52:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:52:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:52:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:52:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:52:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 19:52:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 19:52:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:52:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 19:52:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 19:52:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 19:52:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 19:52:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 19:52:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 19:52:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 19:52:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 19:52:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 19:52:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 19:52:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 19:52:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 19:52:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:52:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-16 19:52:32,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:52:32,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997507052] [2024-11-16 19:52:32,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997507052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:52:32,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:52:32,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:52:32,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620132519] [2024-11-16 19:52:32,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:52:32,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:52:32,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:52:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:52:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:52:32,876 INFO L87 Difference]: Start difference. First operand has 151 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 19:52:37,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:52:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:52:40,626 INFO L93 Difference]: Finished difference Result 300 states and 438 transitions. [2024-11-16 19:52:40,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:52:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2024-11-16 19:52:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:52:40,637 INFO L225 Difference]: With dead ends: 300 [2024-11-16 19:52:40,637 INFO L226 Difference]: Without dead ends: 147 [2024-11-16 19:52:40,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:52:40,644 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 134 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-16 19:52:40,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 163 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2024-11-16 19:52:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-16 19:52:40,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-11-16 19:52:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 86 states have (on average 1.197674418604651) internal successors, (103), 87 states have internal predecessors, (103), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 19:52:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2024-11-16 19:52:40,694 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 120 [2024-11-16 19:52:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:52:40,695 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2024-11-16 19:52:40,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 19:52:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2024-11-16 19:52:40,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 19:52:40,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:52:40,698 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:52:40,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:52:40,699 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:52:40,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:52:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash -621965713, now seen corresponding path program 1 times [2024-11-16 19:52:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:52:40,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411091589] [2024-11-16 19:52:40,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:52:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms