./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_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_buf_append_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 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:43:26,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:43:26,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:43:26,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:43:26,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:43:26,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:43:26,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:43:26,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:43:26,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:43:26,689 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:43:26,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:43:26,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:43:26,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:43:26,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:43:26,691 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:43:26,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:43:26,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:43:26,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:43:26,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:43:26,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:43:26,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:43:26,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:43:26,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:43:26,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:43:26,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:43:26,695 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:43:26,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:43:26,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:43:26,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:43:26,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:43:26,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:43:26,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:43:26,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:43:26,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:43:26,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:43:26,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:43:26,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:43:26,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:43:26,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:43:26,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 [2024-11-16 19:43:26,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:43:27,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:43:27,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:43:27,022 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:43:27,022 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:43:27,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2024-11-16 19:43:28,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:43:29,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:43:29,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2024-11-16 19:43:29,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2423c50/4554c44bdd4d4d31a9065d86fc4b4894/FLAGd26df7087 [2024-11-16 19:43:29,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe2423c50/4554c44bdd4d4d31a9065d86fc4b4894 [2024-11-16 19:43:29,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:43:29,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:43:29,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:43:29,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:43:29,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:43:29,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:43:29" (1/1) ... [2024-11-16 19:43:29,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebb2360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:29, skipping insertion in model container [2024-11-16 19:43:29,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:43:29" (1/1) ... [2024-11-16 19:43:29,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:43:29,575 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.i[4493,4506] [2024-11-16 19:43:29,586 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.i[4553,4566] [2024-11-16 19:43:30,324 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,325 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,326 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,326 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,327 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,339 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,340 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,341 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,342 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,893 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,893 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:30,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:43:31,035 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:43:31,053 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.i[4493,4506] [2024-11-16 19:43:31,054 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.i[4553,4566] [2024-11-16 19:43:31,100 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,101 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,101 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,102 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,102 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,107 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,108 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,109 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,109 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-16 19:43:31,253 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,253 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:43:31,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-16 19:43:31,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:43:31,508 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:43:31,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31 WrapperNode [2024-11-16 19:43:31,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:43:31,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:43:31,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:43:31,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:43:31,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,700 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2024-11-16 19:43:31,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:43:31,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:43:31,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:43:31,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:43:31,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,935 INFO L175 MemorySlicer]: Split 574 memory accesses to 8 slices as follows [2, 257, 238, 22, 9, 9, 33, 4]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 6, 2, 4, 5, 4, 2]. The 494 writes are split as follows [0, 257, 232, 1, 0, 1, 3, 0]. [2024-11-16 19:43:31,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:31,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:43:32,076 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:43:32,076 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:43:32,076 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:43:32,077 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (1/1) ... [2024-11-16 19:43:32,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:43:32,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:43:32,115 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 19:43:32,123 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 19:43:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 19:43:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 19:43:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:43:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:43:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:43:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:43:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:43:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2024-11-16 19:43:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2024-11-16 19:43:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:43:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:43:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 19:43:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 19:43:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:43:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:43:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:43:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:43:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 19:43:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 19:43:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-16 19:43:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-16 19:43:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:43:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:43:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:43:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:43:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:43:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:43:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 19:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-16 19:43:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:43:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-16 19:43:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:43:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:43:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-16 19:43:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:43:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:43:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:43:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:43:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:43:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 19:43:32,552 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:43:32,556 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:43:32,598 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:43:32,600 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:43:32,680 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7399: 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; [2024-11-16 19:43:32,702 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:43:32,740 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7409: 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; [2024-11-16 19:43:32,795 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7909: havoc #t~ret876; [2024-11-16 19:43:32,805 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret657.base, #t~ret657.offset; [2024-11-16 19:43:40,375 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2024-11-16 19:43:40,376 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-16 19:43:40,457 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-16 19:43:40,457 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:43:40,475 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:43:40,476 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:43:40,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:43:40 BoogieIcfgContainer [2024-11-16 19:43:40,477 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:43:40,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:43:40,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:43:40,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:43:40,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:43:29" (1/3) ... [2024-11-16 19:43:40,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c05d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:43:40, skipping insertion in model container [2024-11-16 19:43:40,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:43:31" (2/3) ... [2024-11-16 19:43:40,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5c05d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:43:40, skipping insertion in model container [2024-11-16 19:43:40,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:43:40" (3/3) ... [2024-11-16 19:43:40,488 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2024-11-16 19:43:40,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:43:40,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:43:40,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:43:40,584 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;@7b67e144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:43:40,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:43:40,589 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) [2024-11-16 19:43:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 19:43:40,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:43:40,601 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] [2024-11-16 19:43:40,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:43:40,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:43:40,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2109160199, now seen corresponding path program 1 times [2024-11-16 19:43:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:43:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346464740] [2024-11-16 19:43:40,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:43:40,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:44:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:44:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:44:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 19:44:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:44:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 19:44:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 19:44:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 19:44:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 19:44:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 19:44:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 19:44:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 19:44:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 19:44:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 19:44:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 19:44:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:44:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-16 19:44:56,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:44:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346464740] [2024-11-16 19:44:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346464740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:44:56,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:44:56,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:44:56,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595404887] [2024-11-16 19:44:56,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:44:56,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:44:56,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:44:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:44:56,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:44:56,392 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) [2024-11-16 19:45:00,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:45:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:45:03,274 INFO L93 Difference]: Finished difference Result 339 states and 483 transitions. [2024-11-16 19:45:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:45:03,277 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 [2024-11-16 19:45:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:45:03,284 INFO L225 Difference]: With dead ends: 339 [2024-11-16 19:45:03,284 INFO L226 Difference]: Without dead ends: 166 [2024-11-16 19:45:03,289 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 [2024-11-16 19:45:03,292 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 116 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s 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, 6.8s IncrementalHoareTripleChecker+Time [2024-11-16 19:45:03,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 115 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2024-11-16 19:45:03,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-16 19:45:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-16 19:45:03,338 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) [2024-11-16 19:45:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 219 transitions. [2024-11-16 19:45:03,342 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 219 transitions. Word has length 98 [2024-11-16 19:45:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:45:03,342 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 219 transitions. [2024-11-16 19:45:03,342 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) [2024-11-16 19:45:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 219 transitions. [2024-11-16 19:45:03,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 19:45:03,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:45:03,347 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] [2024-11-16 19:45:03,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:45:03,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:45:03,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:45:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1453390430, now seen corresponding path program 1 times [2024-11-16 19:45:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:45:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482663055] [2024-11-16 19:45:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:45:03,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms