./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_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_cursor_from_string_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 50b1ca614ebad9eb3dfd79de33e45d91140d59dc37b022f2a8ddcabf14cf16e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:53:49,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:53:49,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:53:49,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:53:49,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:53:49,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:53:49,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:53:49,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:53:49,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:53:49,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:53:49,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:53:49,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:53:49,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:53:49,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:53:49,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:53:49,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:53:49,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:53:49,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:53:49,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:53:49,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:53:49,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:53:49,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:53:49,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:53:49,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:53:49,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:53:49,238 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:53:49,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:53:49,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:53:49,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:53:49,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:53:49,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:53:49,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:53:49,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:53:49,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:53:49,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:53:49,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:53:49,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:53:49,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:53:49,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:53:49,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b1ca614ebad9eb3dfd79de33e45d91140d59dc37b022f2a8ddcabf14cf16e8 [2024-11-16 19:53:49,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:53:49,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:53:49,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:53:49,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:53:49,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:53:49,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness_negated.i [2024-11-16 19:53:50,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:53:51,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:53:51,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness_negated.i [2024-11-16 19:53:51,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f51b0ddc/ab9c0d751ebc4dc2bf7b329165866b21/FLAG50f166bea [2024-11-16 19:53:51,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f51b0ddc/ab9c0d751ebc4dc2bf7b329165866b21 [2024-11-16 19:53:51,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:53:51,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:53:51,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:53:51,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:53:51,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:53:51,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:51" (1/1) ... [2024-11-16 19:53:51,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1919b5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:51, skipping insertion in model container [2024-11-16 19:53:51,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:51" (1/1) ... [2024-11-16 19:53:51,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:53:51,926 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_from_string_harness_negated.i[4501,4514] [2024-11-16 19:53:51,937 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_from_string_harness_negated.i[4561,4574] [2024-11-16 19:53:52,689 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,690 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,690 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,691 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,692 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,705 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,705 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,707 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:52,708 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,315 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,316 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:53:53,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:53:53,548 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_from_string_harness_negated.i[4501,4514] [2024-11-16 19:53:53,548 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_from_string_harness_negated.i[4561,4574] [2024-11-16 19:53:53,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,581 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,581 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,586 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,586 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,587 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,587 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2024-11-16 19:53:53,710 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,711 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:53,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2024-11-16 19:53:53,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:53:54,003 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:53:54,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54 WrapperNode [2024-11-16 19:53:54,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:53:54,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:53:54,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:53:54,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:53:54,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,228 INFO L138 Inliner]: procedures = 682, calls = 2791, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 848 [2024-11-16 19:53:54,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:53:54,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:53:54,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:53:54,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:53:54,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,394 INFO L175 MemorySlicer]: Split 543 memory accesses to 6 slices as follows [2, 257, 249, 5, 16, 14]. 47 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 6, 5, 16, 2]. The 494 writes are split as follows [0, 257, 235, 0, 0, 2]. [2024-11-16 19:53:54,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,435 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:53:54,458 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:53:54,458 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:53:54,458 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:53:54,459 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (1/1) ... [2024-11-16 19:53:54,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:53:54,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:53:54,497 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 19:53:54,500 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 19:53:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-16 19:53:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-16 19:53:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:53:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:53:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-16 19:53:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-16 19:53:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:53:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:53:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:53:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:53:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:53:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:53:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:53:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:53:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:53:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:53:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:53:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:53:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:53:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:53:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:53:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:53:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:53:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:53:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:53:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-16 19:53:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-16 19:53:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:53:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:53:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:53:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:53:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:53:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:53:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:53:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:53:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:53:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:53:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:53:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:53:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:53:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:53:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:53:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:53:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:53:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:53:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:53:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:53:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:53:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:53:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:53:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:53:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:53:54,841 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:53:54,844 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:53:54,882 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:53:54,925 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2024-11-16 19:53:54,927 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:53:54,941 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:53:54,969 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7339: havoc #t~mem693;havoc #t~mem694;havoc #t~mem695.base, #t~mem695.offset;havoc #t~short696;havoc #t~mem697;havoc #t~mem698.base, #t~mem698.offset;havoc #t~short699;havoc #t~short700;havoc #t~short701;havoc #t~short702; [2024-11-16 19:53:54,999 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2024-11-16 19:54:02,580 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8209: havoc aws_byte_cursor_from_array_#t~mem1080#1;havoc aws_byte_cursor_from_array_#t~mem1081#1.base, aws_byte_cursor_from_array_#t~mem1081#1.offset;call ULTIMATE.dealloc(aws_byte_cursor_from_array_~#cur~2#1.base, aws_byte_cursor_from_array_~#cur~2#1.offset);havoc aws_byte_cursor_from_array_~#cur~2#1.base, aws_byte_cursor_from_array_~#cur~2#1.offset; [2024-11-16 19:54:02,581 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L9484: havoc aws_byte_cursor_from_string_#t~ret1346#1.base, aws_byte_cursor_from_string_#t~ret1346#1.offset;havoc aws_byte_cursor_from_string_#t~mem1347#1;havoc aws_byte_cursor_from_string_#t~ret1348#1.len, aws_byte_cursor_from_string_#t~ret1348#1.ptr.base, aws_byte_cursor_from_string_#t~ret1348#1.ptr.offset; [2024-11-16 19:54:02,607 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-16 19:54:02,607 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:54:02,619 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:54:02,620 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:54:02,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:54:02 BoogieIcfgContainer [2024-11-16 19:54:02,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:54:02,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:54:02,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:54:02,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:54:02,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:53:51" (1/3) ... [2024-11-16 19:54:02,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1acc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:54:02, skipping insertion in model container [2024-11-16 19:54:02,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:54" (2/3) ... [2024-11-16 19:54:02,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1acc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:54:02, skipping insertion in model container [2024-11-16 19:54:02,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:54:02" (3/3) ... [2024-11-16 19:54:02,631 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness_negated.i [2024-11-16 19:54:02,649 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:54:02,649 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:54:02,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:54:02,724 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;@e48137, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:54:02,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:54:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-16 19:54:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 19:54:02,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:54:02,742 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:54:02,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:54:02,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:54:02,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1336910280, now seen corresponding path program 1 times [2024-11-16 19:54:02,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:54:02,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986265849] [2024-11-16 19:54:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:54:02,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:55:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:55:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:55:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:55:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:55:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:55:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 19:55:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 19:55:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 19:55:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 19:55:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:55:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:55:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 19:55:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 19:55:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:55:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-16 19:55:18,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:55:18,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986265849] [2024-11-16 19:55:18,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986265849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:55:18,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:55:18,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:55:18,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091493720] [2024-11-16 19:55:18,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:55:18,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:55:18,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:55:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:55:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:55:18,920 INFO L87 Difference]: Start difference. First operand has 105 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 19:55:23,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:55:27,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:55:29,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:55:29,314 INFO L93 Difference]: Finished difference Result 202 states and 265 transitions. [2024-11-16 19:55:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:55:29,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-11-16 19:55:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:55:29,325 INFO L225 Difference]: With dead ends: 202 [2024-11-16 19:55:29,325 INFO L226 Difference]: Without dead ends: 98 [2024-11-16 19:55:29,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:55:29,332 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-16 19:55:29,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 76 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-16 19:55:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-16 19:55:29,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-16 19:55:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 63 states have internal predecessors, (71), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 19:55:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2024-11-16 19:55:29,371 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 85 [2024-11-16 19:55:29,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:55:29,372 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2024-11-16 19:55:29,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 19:55:29,373 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2024-11-16 19:55:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 19:55:29,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:55:29,375 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:55:29,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:55:29,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:55:29,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:55:29,377 INFO L85 PathProgramCache]: Analyzing trace with hash 704723351, now seen corresponding path program 1 times [2024-11-16 19:55:29,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:55:29,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831640418] [2024-11-16 19:55:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:55:29,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms