./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_with_lookup_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 f32a256e85dfae47c8548ef83bd17812a642f36aa6564d2121f4ad41349db94a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:39:04,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:39:04,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:39:04,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:39:04,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:39:04,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:39:04,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:39:04,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:39:04,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:39:04,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:39:04,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:39:04,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:39:04,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:39:04,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:39:04,925 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:39:04,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:39:04,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:39:04,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:39:04,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:39:04,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:39:04,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:39:04,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:39:04,928 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:39:04,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:39:04,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:39:04,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:39:04,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:39:04,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:39:04,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:39:04,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:39:04,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:39:04,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:39:04,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:39:04,932 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:39:04,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:39:04,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:39:04,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:39:04,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:39:04,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:39:04,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f32a256e85dfae47c8548ef83bd17812a642f36aa6564d2121f4ad41349db94a [2024-11-12 08:39:05,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:39:05,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:39:05,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:39:05,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:39:05,199 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:39:05,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2024-11-12 08:39:06,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:39:06,977 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:39:06,977 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2024-11-12 08:39:07,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d304e80c/0b2c48171ffd486b9914b7821088b918/FLAGf3c62a760 [2024-11-12 08:39:07,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d304e80c/0b2c48171ffd486b9914b7821088b918 [2024-11-12 08:39:07,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:39:07,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:39:07,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:39:07,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:39:07,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:39:07,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:39:07" (1/1) ... [2024-11-12 08:39:07,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a5dc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:07, skipping insertion in model container [2024-11-12 08:39:07,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:39:07" (1/1) ... [2024-11-12 08:39:07,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:39:07,489 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_with_lookup_harness.i[4505,4518] [2024-11-12 08:39:07,498 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_with_lookup_harness.i[4565,4578] [2024-11-12 08:39:08,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,132 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,134 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,146 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,146 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,147 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,148 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,545 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,546 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,629 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,630 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:39:08,761 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:39:08,777 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_with_lookup_harness.i[4505,4518] [2024-11-12 08:39:08,779 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_with_lookup_harness.i[4565,4578] [2024-11-12 08:39:08,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,858 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,858 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,895 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,895 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,896 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,897 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,972 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:08,973 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:09,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8297] [2024-11-12 08:39:09,027 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:09,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:39:09,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8783-8794] [2024-11-12 08:39:09,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:39:09,213 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:39:09,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09 WrapperNode [2024-11-12 08:39:09,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:39:09,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:39:09,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:39:09,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:39:09,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,414 INFO L138 Inliner]: procedures = 680, calls = 2646, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 972 [2024-11-12 08:39:09,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:39:09,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:39:09,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:39:09,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:39:09,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,511 INFO L175 MemorySlicer]: Split 572 memory accesses to 9 slices as follows [2, 9, 257, 238, 1, 9, 4, 32, 20]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 4, 0, 6, 0, 5, 2, 4, 2]. The 494 writes are split as follows [0, 0, 257, 232, 0, 1, 0, 3, 1]. [2024-11-12 08:39:09,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:39:09,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:39:09,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:39:09,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:39:09,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (1/1) ... [2024-11-12 08:39:09,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:39:09,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:39:09,645 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) [2024-11-12 08:39:09,652 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 [2024-11-12 08:39:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-12 08:39:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-12 08:39:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-12 08:39:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-12 08:39:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:39:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:39:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:39:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 08:39:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-12 08:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-12 08:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-12 08:39:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:39:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:39:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:39:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:39:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:39:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:39:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-12 08:39:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:39:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-12 08:39:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:39:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:39:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-12 08:39:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-12 08:39:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-12 08:39:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 08:39:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-12 08:39:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 08:39:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-12 08:39:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-12 08:39:10,093 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:39:10,096 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:39:18,244 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-12 08:39:18,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:39:18,259 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:39:18,260 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 08:39:18,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:39:18 BoogieIcfgContainer [2024-11-12 08:39:18,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:39:18,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:39:18,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:39:18,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:39:18,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:39:07" (1/3) ... [2024-11-12 08:39:18,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd67c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:39:18, skipping insertion in model container [2024-11-12 08:39:18,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:39:09" (2/3) ... [2024-11-12 08:39:18,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd67c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:39:18, skipping insertion in model container [2024-11-12 08:39:18,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:39:18" (3/3) ... [2024-11-12 08:39:18,270 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2024-11-12 08:39:18,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:39:18,284 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:39:18,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:39:18,341 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;@4e4422f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:39:18,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:39:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 107 states have internal predecessors, (130), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-12 08:39:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-12 08:39:18,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:39:18,358 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 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, 1] [2024-11-12 08:39:18,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:39:18,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:39:18,365 INFO L85 PathProgramCache]: Analyzing trace with hash -454301623, now seen corresponding path program 1 times [2024-11-12 08:39:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:39:18,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155396308] [2024-11-12 08:39:18,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:39:18,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:40:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 08:40:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-12 08:40:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-12 08:40:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:40:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 08:40:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 08:40:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-12 08:40:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-12 08:40:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-12 08:40:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-12 08:40:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-12 08:40:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 08:40:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 08:40:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-12 08:40:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-12 08:40:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-12 08:40:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:40:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-12 08:40:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:40:34,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155396308] [2024-11-12 08:40:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155396308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:40:34,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:40:34,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:40:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277817566] [2024-11-12 08:40:34,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:40:34,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:40:34,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:40:34,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:40:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:40:34,712 INFO L87 Difference]: Start difference. First operand has 164 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 107 states have internal predecessors, (130), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 08:40:38,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:40:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:40:40,958 INFO L93 Difference]: Finished difference Result 324 states and 457 transitions. [2024-11-12 08:40:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:40:40,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-11-12 08:40:40,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:40:40,970 INFO L225 Difference]: With dead ends: 324 [2024-11-12 08:40:40,970 INFO L226 Difference]: Without dead ends: 159 [2024-11-12 08:40:40,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:40:40,981 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 79 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-12 08:40:40,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 179 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-12 08:40:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-12 08:40:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-12 08:40:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 103 states have internal predecessors, (123), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-12 08:40:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2024-11-12 08:40:41,032 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 106 [2024-11-12 08:40:41,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:40:41,032 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2024-11-12 08:40:41,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-12 08:40:41,032 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2024-11-12 08:40:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-12 08:40:41,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:40:41,036 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 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, 1] [2024-11-12 08:40:41,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:40:41,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:40:41,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:40:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash 889441429, now seen corresponding path program 1 times [2024-11-12 08:40:41,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:40:41,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457219855] [2024-11-12 08:40:41,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:40:41,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms