./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_buf_append_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 689a562e38ace49351de33b47cbcb3c6d5f59acf10f911a7928d5d2dec3921f0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:46:34,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:46:34,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:46:34,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:46:34,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:46:34,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:46:34,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:46:34,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:46:34,101 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:46:34,101 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:46:34,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:46:34,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:46:34,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:46:34,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:46:34,103 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:46:34,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:46:34,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:46:34,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:46:34,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:46:34,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:46:34,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:46:34,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:46:34,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:46:34,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:46:34,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:46:34,106 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:46:34,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:46:34,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:46:34,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:46:34,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:34,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:46:34,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:46:34,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:46:34,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:46:34,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:46:34,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:46:34,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:46:34,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:46:34,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:46:34,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 689a562e38ace49351de33b47cbcb3c6d5f59acf10f911a7928d5d2dec3921f0 [2024-11-10 10:46:34,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:46:34,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:46:34,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:46:34,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:46:34,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:46:34,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2024-11-10 10:46:35,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:46:36,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:46:36,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2024-11-10 10:46:36,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62311c0f/1fac56937f7c4c05b8bb1c7c86ea8597/FLAGc3b676c5d [2024-11-10 10:46:36,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f62311c0f/1fac56937f7c4c05b8bb1c7c86ea8597 [2024-11-10 10:46:36,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:46:36,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:46:36,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:36,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:46:36,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:46:36,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:36" (1/1) ... [2024-11-10 10:46:36,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2bffb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:36, skipping insertion in model container [2024-11-10 10:46:36,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:36" (1/1) ... [2024-11-10 10:46:36,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:46:36,441 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_buf_append_harness_negated.i[4493,4506] [2024-11-10 10:46:36,448 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_buf_append_harness_negated.i[4553,4566] [2024-11-10 10:46:36,988 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:36,989 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:36,989 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:36,990 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:36,991 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,001 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,002 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,003 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,004 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,524 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,529 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:37,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:46:37,675 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_buf_append_harness_negated.i[4493,4506] [2024-11-10 10:46:37,680 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_buf_append_harness_negated.i[4553,4566] [2024-11-10 10:46:37,721 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,723 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,723 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,723 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,724 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,730 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,730 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,731 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,735 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2024-11-10 10:46:37,921 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,921 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:37,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2024-11-10 10:46:37,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:38,143 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:46:38,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38 WrapperNode [2024-11-10 10:46:38,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:38,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:38,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:46:38,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:46:38,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,340 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2024-11-10 10:46:38,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:38,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:46:38,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:46:38,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:46:38,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,409 INFO L175 MemorySlicer]: Split 574 memory accesses to 8 slices as follows [257, 2, 238, 9, 33, 4, 9, 22]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [0, 2, 6, 5, 4, 2, 4, 2]. The 494 writes are split as follows [257, 0, 232, 1, 3, 0, 0, 1]. [2024-11-10 10:46:38,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,446 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:46:38,487 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:46:38,487 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:46:38,487 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:46:38,488 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (1/1) ... [2024-11-10 10:46:38,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:38,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:46:38,520 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) [2024-11-10 10:46:38,522 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 [2024-11-10 10:46:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:46:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:46:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:46:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:46:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:46:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2024-11-10 10:46:38,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2024-11-10 10:46:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:46:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:46:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:46:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:46:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:46:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:46:38,567 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:46:38,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:46:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-10 10:46:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:46:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:46:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:46:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:46:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:46:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:46:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:46:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:46:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:46:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:46:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:46:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-10 10:46:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:46:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:46:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-10 10:46:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:46:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:46:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:46:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 10:46:38,865 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:46:38,868 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:46:38,901 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:46:38,905 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:46:38,962 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7367: havoc #t~mem682;havoc #t~mem683;havoc #t~short684;havoc #t~mem685.base, #t~mem685.offset;havoc #t~short686;havoc #t~mem687;havoc #t~mem688;havoc #t~mem689;havoc #t~short690;havoc #t~mem691;havoc #t~mem692.base, #t~mem692.offset;havoc #t~short693;havoc #t~short694;havoc #t~short695;havoc #t~short696; [2024-11-10 10:46:38,982 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:46:39,009 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: havoc #t~mem697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~mem701;havoc #t~mem702.base, #t~mem702.offset;havoc #t~short703;havoc #t~short704;havoc #t~short705;havoc #t~short706; [2024-11-10 10:46:39,060 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7877: havoc #t~ret876; [2024-11-10 10:46:39,066 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc #t~ret657.base, #t~ret657.offset; [2024-11-10 10:46:46,022 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:46:46,022 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6657: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2024-11-10 10:46:46,074 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-10 10:46:46,075 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:46:46,094 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:46:46,095 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:46:46,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:46 BoogieIcfgContainer [2024-11-10 10:46:46,095 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:46:46,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:46:46,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:46:46,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:46:46,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:46:36" (1/3) ... [2024-11-10 10:46:46,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a28204f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:46, skipping insertion in model container [2024-11-10 10:46:46,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:38" (2/3) ... [2024-11-10 10:46:46,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a28204f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:46, skipping insertion in model container [2024-11-10 10:46:46,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:46" (3/3) ... [2024-11-10 10:46:46,107 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness_negated.i [2024-11-10 10:46:46,120 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:46:46,121 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:46:46,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:46:46,182 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;@325be759, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:46:46,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:46:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 10:46:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 10:46:46,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:46:46,202 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:46:46,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:46:46,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:46:46,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2109160199, now seen corresponding path program 1 times [2024-11-10 10:46:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:46:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721174429] [2024-11-10 10:46:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:46:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:48:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:48:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:48:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 10:48:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 10:48:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 10:48:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 10:48:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:48:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:48:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:48:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 10:48:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 10:48:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-10 10:48:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 10:48:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-10 10:48:07,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:48:07,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721174429] [2024-11-10 10:48:07,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721174429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:48:07,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:48:07,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:48:07,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091565790] [2024-11-10 10:48:07,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:48:07,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:48:07,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:48:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:48:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:07,356 INFO L87 Difference]: Start difference. First operand has 172 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:48:11,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:48:14,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:48:14,131 INFO L93 Difference]: Finished difference Result 339 states and 483 transitions. [2024-11-10 10:48:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:48:14,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 98 [2024-11-10 10:48:14,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:48:14,140 INFO L225 Difference]: With dead ends: 339 [2024-11-10 10:48:14,140 INFO L226 Difference]: Without dead ends: 166 [2024-11-10 10:48:14,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:14,147 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 116 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-10 10:48:14,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 115 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-10 10:48:14,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-10 10:48:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-10 10:48:14,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 104 states have (on average 1.1923076923076923) internal successors, (124), 105 states have internal predecessors, (124), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-10 10:48:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 219 transitions. [2024-11-10 10:48:14,193 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 219 transitions. Word has length 98 [2024-11-10 10:48:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:48:14,195 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 219 transitions. [2024-11-10 10:48:14,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:48:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 219 transitions. [2024-11-10 10:48:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 10:48:14,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:48:14,200 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:48:14,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:48:14,201 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:48:14,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:48:14,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1453390430, now seen corresponding path program 1 times [2024-11-10 10:48:14,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:48:14,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550384266] [2024-11-10 10:48:14,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:48:14,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms