./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.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-023d838-m [2024-11-10 10:46:34,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:46:34,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:46:34,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:46:34,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:46:34,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:46:34,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:46:34,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:46:34,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:46:34,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:46:34,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:46:34,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:46:34,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:46:34,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:46:34,249 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:46:34,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:46:34,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:46:34,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:46:34,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:46:34,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:46:34,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:46:34,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:46:34,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:46:34,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:46:34,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:46:34,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:46:34,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:46:34,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:46:34,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:46:34,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:34,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:46:34,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:46:34,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:46:34,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:46:34,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:46:34,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:46:34,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:46:34,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:46:34,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:46:34,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 [2024-11-10 10:46:34,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:46:34,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:46:34,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:46:34,596 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:46:34,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:46:34,598 INFO L431 ainManager$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 [2024-11-10 10:46:36,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:46:36,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:46:36,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2024-11-10 10:46:36,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9750204b6/66b2e29227694c0f8c47006b01e0ccc4/FLAG35ba9501f [2024-11-10 10:46:36,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9750204b6/66b2e29227694c0f8c47006b01e0ccc4 [2024-11-10 10:46:36,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:46:36,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:46:36,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:36,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:46:36,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:46:36,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:36" (1/1) ... [2024-11-10 10:46:36,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df04d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:36, skipping insertion in model container [2024-11-10 10:46:36,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:36" (1/1) ... [2024-11-10 10:46:36,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:46:37,253 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] [2024-11-10 10:46:37,268 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] [2024-11-10 10:46:38,769 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,770 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,770 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,771 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,772 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,784 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,786 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:38,788 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,069 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,070 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:40,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:46:40,307 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] [2024-11-10 10:46:40,309 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] [2024-11-10 10:46:40,409 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,409 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,410 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,416 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,416 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,430 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,431 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,432 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,432 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-10 10:46:40,623 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,624 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:40,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-10 10:46:40,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:40,905 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:46:40,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40 WrapperNode [2024-11-10 10:46:40,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:40,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:40,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:46:40,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:46:40,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,121 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2024-11-10 10:46:41,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:41,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:46:41,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:46:41,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:46:41,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,242 INFO L175 MemorySlicer]: Split 574 memory accesses to 8 slices as follows [257, 2, 238, 22, 9, 4, 33, 9]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [0, 2, 6, 2, 4, 2, 4, 5]. The 494 writes are split as follows [257, 0, 232, 1, 0, 0, 3, 1]. [2024-11-10 10:46:41,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:46:41,364 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:46:41,364 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:46:41,364 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:46:41,365 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (1/1) ... [2024-11-10 10:46:41,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:41,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:46:41,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:46:41,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:46:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:46:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:46:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:46:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:46:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:46:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2024-11-10 10:46:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-10 10:46:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:46:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:46:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:46:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:46:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-10 10:46:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:46:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:46:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:46:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-10 10:46:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:46:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-10 10:46:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:46:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:46:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:46:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-10 10:46:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:46:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:46:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:46:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:46:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 10:46:41,896 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:46:41,903 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:46:41,953 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:46:41,956 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:46:42,098 INFO L1247 $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; [2024-11-10 10:46:42,133 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:46:42,179 INFO L1247 $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; [2024-11-10 10:46:42,222 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7909: havoc #t~ret876; [2024-11-10 10:46:42,237 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret657.base, #t~ret657.offset; [2024-11-10 10:46:49,934 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2024-11-10 10:46:49,935 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:46:50,021 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-10 10:46:50,022 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:46:50,039 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:46:50,042 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:46:50,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:50 BoogieIcfgContainer [2024-11-10 10:46:50,043 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:46:50,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:46:50,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:46:50,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:46:50,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:46:36" (1/3) ... [2024-11-10 10:46:50,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6da0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:50, skipping insertion in model container [2024-11-10 10:46:50,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:40" (2/3) ... [2024-11-10 10:46:50,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6da0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:50, skipping insertion in model container [2024-11-10 10:46:50,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:50" (3/3) ... [2024-11-10 10:46:50,054 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2024-11-10 10:46:50,071 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:46:50,072 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:46:50,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:46:50,160 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;@4636509a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:46:50,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:46:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-10 10:46:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 10:46:50,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:46:50,182 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:46:50,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:46:50,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:46:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2109160199, now seen corresponding path program 1 times [2024-11-10 10:46:50,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:46:50,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405279527] [2024-11-10 10:46:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:46:50,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:48:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:48:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:48:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 10:48:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 10:48:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 10:48:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 10:48:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:48:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:48:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:48:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 10:48:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 10:48:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-10 10:48:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 10:48:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-10 10:48:05,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:48:05,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405279527] [2024-11-10 10:48:05,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405279527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:48:05,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:48:05,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:48:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262420242] [2024-11-10 10:48:05,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:48:05,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:48:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:48:05,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:48:05,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:05,880 INFO L87 Difference]: Start difference. First operand has 172 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:48:10,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:48:12,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:48:12,991 INFO L93 Difference]: Finished difference Result 339 states and 483 transitions. [2024-11-10 10:48:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:48:12,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 98 [2024-11-10 10:48:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:48:13,002 INFO L225 Difference]: With dead ends: 339 [2024-11-10 10:48:13,002 INFO L226 Difference]: Without dead ends: 166 [2024-11-10 10:48:13,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:13,009 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 116 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s 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, 7.0s IncrementalHoareTripleChecker+Time [2024-11-10 10:48:13,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 115 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-10 10:48:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-10 10:48:13,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-10 10:48:13,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 104 states have (on average 1.1923076923076923) internal successors, (124), 105 states have internal predecessors, (124), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-10 10:48:13,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 219 transitions. [2024-11-10 10:48:13,067 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 219 transitions. Word has length 98 [2024-11-10 10:48:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:48:13,067 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 219 transitions. [2024-11-10 10:48:13,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:48:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 219 transitions. [2024-11-10 10:48:13,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 10:48:13,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:48:13,072 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:48:13,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:48:13,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:48:13,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:48:13,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1453390430, now seen corresponding path program 1 times [2024-11-10 10:48:13,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:48:13,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620071665] [2024-11-10 10:48:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:48:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms