./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_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_cursor_eq_byte_buf_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 67f91616a04fd34810833b3e688acc6e6795398dee40f60397ae88c5a06b9566 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:54:14,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:54:14,223 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:54:14,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:54:14,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:54:14,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:54:14,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:54:14,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:54:14,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:54:14,255 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:54:14,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:54:14,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:54:14,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:54:14,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:54:14,257 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:54:14,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:54:14,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:54:14,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:54:14,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:54:14,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:54:14,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:54:14,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:54:14,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:54:14,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:54:14,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:54:14,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:54:14,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:54:14,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:54:14,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:54:14,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:54:14,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:54:14,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:54:14,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:54:14,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:54:14,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:54:14,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:54:14,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:54:14,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:54:14,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:54:14,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67f91616a04fd34810833b3e688acc6e6795398dee40f60397ae88c5a06b9566 [2024-11-10 10:54:14,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:54:14,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:54:14,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:54:14,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:54:14,503 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:54:14,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2024-11-10 10:54:15,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:54:16,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:54:16,255 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2024-11-10 10:54:16,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/319208954/6ce87a57e7f445a1a1494ea7728b307a/FLAGa4c13c843 [2024-11-10 10:54:16,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/319208954/6ce87a57e7f445a1a1494ea7728b307a [2024-11-10 10:54:16,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:54:16,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:54:16,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:54:16,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:54:16,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:54:16,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:54:16" (1/1) ... [2024-11-10 10:54:16,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e64f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:16, skipping insertion in model container [2024-11-10 10:54:16,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:54:16" (1/1) ... [2024-11-10 10:54:16,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:54:16,674 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_cursor_eq_byte_buf_harness.i[4501,4514] [2024-11-10 10:54:16,683 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_cursor_eq_byte_buf_harness.i[4561,4574] [2024-11-10 10:54:17,360 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,364 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,365 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,365 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,379 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,382 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,383 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,384 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:17,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:54:17,948 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:54:17,959 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_cursor_eq_byte_buf_harness.i[4501,4514] [2024-11-10 10:54:17,960 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_cursor_eq_byte_buf_harness.i[4561,4574] [2024-11-10 10:54:18,000 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,002 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,003 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,003 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,003 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,007 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,010 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,012 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-10 10:54:18,107 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,108 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:18,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-10 10:54:18,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:54:18,321 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:54:18,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18 WrapperNode [2024-11-10 10:54:18,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:54:18,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:54:18,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:54:18,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:54:18,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,526 INFO L138 Inliner]: procedures = 680, calls = 2651, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 947 [2024-11-10 10:54:18,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:54:18,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:54:18,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:54:18,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:54:18,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,615 INFO L175 MemorySlicer]: Split 572 memory accesses to 7 slices as follows [2, 257, 238, 6, 38, 9, 22]. 45 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 6, 0, 8, 5, 2]. The 494 writes are split as follows [0, 257, 232, 2, 2, 0, 1]. [2024-11-10 10:54:18,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,644 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:54:18,665 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:54:18,665 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:54:18,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:54:18,666 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (1/1) ... [2024-11-10 10:54:18,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:54:18,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:54:18,700 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 10:54:18,702 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 10:54:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:54:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:54:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-10 10:54:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-10 10:54:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:54:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:54:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:54:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:54:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-10 10:54:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:54:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:54:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:54:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:54:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:54:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:54:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:54:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:54:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-10 10:54:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:54:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:54:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:54:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:54:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:54:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:54:18,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:54:19,097 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:54:19,099 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:54:19,131 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:54:19,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:54:19,186 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:54:19,197 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7727: havoc #t~nondet818; [2024-11-10 10:54:19,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2024-11-10 10:54:19,238 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:54:19,257 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7395: havoc #t~mem694;havoc #t~mem695;havoc #t~mem696.base, #t~mem696.offset;havoc #t~short697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~short701;havoc #t~short702;havoc #t~short703; [2024-11-10 10:54:26,177 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2024-11-10 10:54:26,178 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:54:26,213 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-10 10:54:26,213 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:54:26,230 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:54:26,231 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:54:26,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:54:26 BoogieIcfgContainer [2024-11-10 10:54:26,231 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:54:26,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:54:26,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:54:26,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:54:26,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:54:16" (1/3) ... [2024-11-10 10:54:26,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d1fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:54:26, skipping insertion in model container [2024-11-10 10:54:26,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:18" (2/3) ... [2024-11-10 10:54:26,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d1fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:54:26, skipping insertion in model container [2024-11-10 10:54:26,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:54:26" (3/3) ... [2024-11-10 10:54:26,240 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2024-11-10 10:54:26,252 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:54:26,253 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:54:26,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:54:26,316 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;@63ad12c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:54:26,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:54:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 107 states have (on average 1.2523364485981308) internal successors, (134), 108 states have internal predecessors, (134), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-10 10:54:26,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-10 10:54:26,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:54:26,336 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:54:26,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:54:26,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:54:26,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1840360807, now seen corresponding path program 1 times [2024-11-10 10:54:26,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:54:26,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870870918] [2024-11-10 10:54:26,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:54:26,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:55:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:55:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:55:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 10:55:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 10:55:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:55:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:46,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 10:55:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-10 10:55:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:55:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:55:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:55:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 10:55:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 10:55:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 10:55:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 10:55:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 10:55:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 10:55:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-10 10:55:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:55:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:55:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 10:55:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-10 10:55:47,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:55:47,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870870918] [2024-11-10 10:55:47,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870870918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:55:47,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:55:47,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:55:47,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654087327] [2024-11-10 10:55:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:55:47,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:55:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:55:47,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:55:47,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:55:47,290 INFO L87 Difference]: Start difference. First operand has 162 states, 107 states have (on average 1.2523364485981308) internal successors, (134), 108 states have internal predecessors, (134), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 10:55:51,426 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 [] [2024-11-10 10:55:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:55:54,780 INFO L93 Difference]: Finished difference Result 321 states and 463 transitions. [2024-11-10 10:55:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:55:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 127 [2024-11-10 10:55:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:55:54,797 INFO L225 Difference]: With dead ends: 321 [2024-11-10 10:55:54,799 INFO L226 Difference]: Without dead ends: 157 [2024-11-10 10:55:54,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:55:54,810 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 146 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 91 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-10 10:55:54,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 241 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 170 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-11-10 10:55:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-10 10:55:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2024-11-10 10:55:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 102 states have internal predecessors, (124), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-10 10:55:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 207 transitions. [2024-11-10 10:55:54,864 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 207 transitions. Word has length 127 [2024-11-10 10:55:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:55:54,864 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 207 transitions. [2024-11-10 10:55:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 10:55:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 207 transitions. [2024-11-10 10:55:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-10 10:55:54,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:55:54,868 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:55:54,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:55:54,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:55:54,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:55:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1285615426, now seen corresponding path program 1 times [2024-11-10 10:55:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:55:54,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869830431] [2024-11-10 10:55:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:55:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms