./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 213a189671075c0c13353e6cef2ff881190dbc59e085aa9fab998a3d426f19f8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:47:50,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:47:50,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:47:50,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:47:50,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:47:50,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:47:50,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:47:50,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:47:50,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:47:50,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:47:50,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:47:50,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:47:50,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:47:50,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:47:50,410 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:47:50,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:47:50,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:47:50,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:47:50,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:47:50,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:47:50,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:47:50,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:47:50,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:47:50,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:47:50,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:47:50,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:47:50,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:47:50,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:47:50,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:47:50,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:47:50,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:47:50,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:47:50,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:47:50,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:47:50,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:47:50,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:47:50,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:47:50,417 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:47:50,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:47:50,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213a189671075c0c13353e6cef2ff881190dbc59e085aa9fab998a3d426f19f8 [2024-11-16 19:47:50,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:47:50,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:47:50,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:47:50,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:47:50,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:47:50,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness_negated.i [2024-11-16 19:47:51,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:47:52,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:47:52,185 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness_negated.i [2024-11-16 19:47:52,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b48bd1036/9646bedb89e04afcb682b0607d42cea4/FLAGde8f824a7 [2024-11-16 19:47:52,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b48bd1036/9646bedb89e04afcb682b0607d42cea4 [2024-11-16 19:47:52,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:47:52,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:47:52,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:47:52,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:47:52,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:47:52,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:47:52" (1/1) ... [2024-11-16 19:47:52,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729be41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:52, skipping insertion in model container [2024-11-16 19:47:52,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:47:52" (1/1) ... [2024-11-16 19:47:52,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:47:52,730 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness_negated.i[4492,4505] [2024-11-16 19:47:52,736 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_reset_harness_negated.i[4552,4565] [2024-11-16 19:47:53,265 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,267 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,267 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,268 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,269 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,283 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,284 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,285 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,285 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,744 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,745 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:47:53,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:47:53,838 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_reset_harness_negated.i[4492,4505] [2024-11-16 19:47:53,839 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_reset_harness_negated.i[4552,4565] [2024-11-16 19:47:53,861 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,861 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,861 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,862 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,862 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,870 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,870 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,871 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,871 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2024-11-16 19:47:53,947 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,947 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:47:53,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2024-11-16 19:47:53,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:47:54,238 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:47:54,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54 WrapperNode [2024-11-16 19:47:54,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:47:54,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:47:54,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:47:54,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:47:54,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,361 INFO L138 Inliner]: procedures = 680, calls = 2629, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 822 [2024-11-16 19:47:54,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:47:54,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:47:54,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:47:54,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:47:54,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,463 INFO L175 MemorySlicer]: Split 542 memory accesses to 6 slices as follows [31, 2, 257, 238, 7, 7]. 47 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [4, 2, 0, 6, 4, 5]. The 494 writes are split as follows [4, 0, 257, 232, 0, 1]. [2024-11-16 19:47:54,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:47:54,503 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:47:54,504 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:47:54,504 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:47:54,508 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (1/1) ... [2024-11-16 19:47:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:47:54,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:47:54,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:47:54,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:47:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 19:47:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:47:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:47:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:47:54,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2024-11-16 19:47:54,572 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:47:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:47:54,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:47:54,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:47:54,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:47:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:47:54,574 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:47:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2024-11-16 19:47:54,575 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2024-11-16 19:47:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:47:54,575 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:47:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:47:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:47:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:47:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-16 19:47:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-16 19:47:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:47:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:47:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:47:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:47:54,820 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:47:54,822 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:47:54,850 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:47:54,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:47:54,877 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc #t~ret656.base, #t~ret656.offset; [2024-11-16 19:47:54,904 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7367: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2024-11-16 19:47:54,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:48:02,042 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-16 19:48:02,089 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2024-11-16 19:48:02,089 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:48:02,103 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:48:02,103 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:48:02,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:48:02 BoogieIcfgContainer [2024-11-16 19:48:02,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:48:02,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:48:02,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:48:02,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:48:02,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:47:52" (1/3) ... [2024-11-16 19:48:02,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa45830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:02, skipping insertion in model container [2024-11-16 19:48:02,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:47:54" (2/3) ... [2024-11-16 19:48:02,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa45830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:02, skipping insertion in model container [2024-11-16 19:48:02,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:48:02" (3/3) ... [2024-11-16 19:48:02,111 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reset_harness_negated.i [2024-11-16 19:48:02,122 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:48:02,123 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:48:02,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:48:02,182 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4dd6e4bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:48:02,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:48:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 80 states have (on average 1.225) internal successors, (98), 82 states have internal predecessors, (98), 23 states have call successors, (23), 11 states have call predecessors, (23), 11 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 19:48:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-16 19:48:02,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:48:02,195 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:48:02,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:48:02,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:48:02,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1457348797, now seen corresponding path program 1 times [2024-11-16 19:48:02,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:48:02,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785415139] [2024-11-16 19:48:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:48:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:49:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:49:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:49:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 19:49:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:49:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 19:49:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 19:49:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:49:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:49:14,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:49:14,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785415139] [2024-11-16 19:49:14,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785415139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:49:14,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:49:14,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:49:14,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336409798] [2024-11-16 19:49:14,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:49:14,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:49:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:49:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:49:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:49:14,271 INFO L87 Difference]: Start difference. First operand has 116 states, 80 states have (on average 1.225) internal successors, (98), 82 states have internal predecessors, (98), 23 states have call successors, (23), 11 states have call predecessors, (23), 11 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 19:49:18,408 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 [] [2024-11-16 19:49:20,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:49:20,249 INFO L93 Difference]: Finished difference Result 227 states and 299 transitions. [2024-11-16 19:49:20,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:49:20,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2024-11-16 19:49:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:49:20,257 INFO L225 Difference]: With dead ends: 227 [2024-11-16 19:49:20,257 INFO L226 Difference]: Without dead ends: 106 [2024-11-16 19:49:20,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:49:20,264 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-16 19:49:20,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 77 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-16 19:49:20,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-16 19:49:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-16 19:49:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 74 states have internal predecessors, (85), 23 states have call successors, (23), 11 states have call predecessors, (23), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 19:49:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2024-11-16 19:49:20,309 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 46 [2024-11-16 19:49:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:49:20,310 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2024-11-16 19:49:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 19:49:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2024-11-16 19:49:20,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-16 19:49:20,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:49:20,313 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:49:20,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:49:20,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:49:20,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:49:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1313648832, now seen corresponding path program 1 times [2024-11-16 19:49:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:49:20,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708502060] [2024-11-16 19:49:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:49:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms