./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_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_hash_callback_string_eq_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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 11:00:24,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 11:00:24,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 11:00:24,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 11:00:24,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 11:00:25,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 11:00:25,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 11:00:25,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 11:00:25,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 11:00:25,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 11:00:25,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 11:00:25,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 11:00:25,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 11:00:25,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 11:00:25,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 11:00:25,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 11:00:25,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 11:00:25,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 11:00:25,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 11:00:25,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 11:00:25,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 11:00:25,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 11:00:25,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 11:00:25,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 11:00:25,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 11:00:25,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 11:00:25,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 11:00:25,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 11:00:25,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 11:00:25,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:00:25,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 11:00:25,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 11:00:25,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 11:00:25,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 11:00:25,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 11:00:25,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 11:00:25,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 11:00:25,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 11:00:25,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 11:00:25,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2024-11-10 11:00:25,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 11:00:25,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 11:00:25,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 11:00:25,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 11:00:25,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 11:00:25,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-10 11:00:26,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 11:00:27,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 11:00:27,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-10 11:00:27,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c41ee07b/baa0614ebdb448e1a1161d595cd05762/FLAG8823b26c2 [2024-11-10 11:00:27,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c41ee07b/baa0614ebdb448e1a1161d595cd05762 [2024-11-10 11:00:27,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 11:00:27,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 11:00:27,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 11:00:27,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 11:00:27,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 11:00:27,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:00:27" (1/1) ... [2024-11-10 11:00:27,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c87f994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:27, skipping insertion in model container [2024-11-10 11:00:27,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:00:27" (1/1) ... [2024-11-10 11:00:27,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 11:00:27,906 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_hash_callback_string_eq_harness.i[4501,4514] [2024-11-10 11:00:27,919 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_hash_callback_string_eq_harness.i[4561,4574] [2024-11-10 11:00:28,848 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,848 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,849 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,849 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,850 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,870 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,871 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,873 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:28,873 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,542 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,833 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,834 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,857 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,858 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,862 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,863 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,877 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,879 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,879 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,880 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,880 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,881 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,881 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:29,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:00:29,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 11:00:29,987 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_hash_callback_string_eq_harness.i[4501,4514] [2024-11-10 11:00:29,988 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_hash_callback_string_eq_harness.i[4561,4574] [2024-11-10 11:00:30,026 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,030 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,030 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,031 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,031 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,036 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,036 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,037 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,037 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8255] [2024-11-10 11:00:30,196 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,196 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,273 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,281 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,282 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,285 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,287 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,292 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,293 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,293 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,294 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,294 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,294 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,295 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:30,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:00:30,595 INFO L204 MainTranslator]: Completed translation [2024-11-10 11:00:30,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30 WrapperNode [2024-11-10 11:00:30,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 11:00:30,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 11:00:30,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 11:00:30,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 11:00:30,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,818 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2024-11-10 11:00:30,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 11:00:30,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 11:00:30,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 11:00:30,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 11:00:30,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,886 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 5, 13, 257]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 260 writes are split as follows [0, 0, 3, 257]. [2024-11-10 11:00:30,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,921 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 11:00:30,945 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 11:00:30,945 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 11:00:30,945 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 11:00:30,946 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (1/1) ... [2024-11-10 11:00:30,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:00:30,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 11:00:30,980 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 11:00:30,982 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 11:00:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-10 11:00:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-10 11:00:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:00:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:00:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 11:00:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 11:00:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 11:00:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 11:00:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 11:00:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 11:00:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 11:00:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 11:00:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 11:00:31,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 11:00:31,032 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 11:00:31,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 11:00:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 11:00:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 11:00:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-10 11:00:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-10 11:00:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 11:00:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 11:00:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 11:00:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 11:00:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 11:00:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 11:00:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 11:00:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-10 11:00:31,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-10 11:00:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 11:00:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 11:00:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 11:00:31,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 11:00:31,354 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 11:00:31,356 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 11:00:31,401 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6899: havoc #t~malloc562.base, #t~malloc562.offset; [2024-11-10 11:00:31,414 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 11:00:31,446 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6257: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2024-11-10 11:00:31,449 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 11:00:31,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6816: havoc #t~ret548#1.base, #t~ret548#1.offset; [2024-11-10 11:00:31,502 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7705: havoc #t~nondet820; [2024-11-10 11:00:37,986 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L11074: havoc aws_string_eq_#t~mem2108#1;havoc aws_string_eq_#t~mem2109#1;havoc aws_string_eq_#t~ret2110#1; [2024-11-10 11:00:37,987 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10810-1: assume true; [2024-11-10 11:00:37,987 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10810-1: assume !true; [2024-11-10 11:00:38,096 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-10 11:00:38,096 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 11:00:38,123 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 11:00:38,123 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 11:00:38,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:00:38 BoogieIcfgContainer [2024-11-10 11:00:38,123 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 11:00:38,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 11:00:38,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 11:00:38,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 11:00:38,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:00:27" (1/3) ... [2024-11-10 11:00:38,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba10002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:00:38, skipping insertion in model container [2024-11-10 11:00:38,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:30" (2/3) ... [2024-11-10 11:00:38,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba10002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:00:38, skipping insertion in model container [2024-11-10 11:00:38,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:00:38" (3/3) ... [2024-11-10 11:00:38,139 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2024-11-10 11:00:38,157 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 11:00:38,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 11:00:38,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 11:00:38,234 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;@3545d24e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 11:00:38,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 11:00:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 73 states have internal predecessors, (89), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 11:00:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 11:00:38,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:00:38,255 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-10 11:00:38,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:00:38,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:00:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 496683778, now seen corresponding path program 1 times [2024-11-10 11:00:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:00:38,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651958075] [2024-11-10 11:00:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:00:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 11:01:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 11:01:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 11:01:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 11:01:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 11:01:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 11:01:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 11:01:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 11:01:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 11:01:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 11:01:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 11:01:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 11:01:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 11:01:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 11:01:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-10 11:01:28,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 11:01:28,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651958075] [2024-11-10 11:01:28,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651958075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 11:01:28,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 11:01:28,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 11:01:28,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348405595] [2024-11-10 11:01:28,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 11:01:28,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 11:01:28,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 11:01:28,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 11:01:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 11:01:28,507 INFO L87 Difference]: Start difference. First operand has 112 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 73 states have internal predecessors, (89), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 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) [2024-11-10 11:01:32,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 11:01:37,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 11:01:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 11:01:39,023 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2024-11-10 11:01:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 11:01:39,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 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 93 [2024-11-10 11:01:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 11:01:39,032 INFO L225 Difference]: With dead ends: 220 [2024-11-10 11:01:39,032 INFO L226 Difference]: Without dead ends: 105 [2024-11-10 11:01:39,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 11:01:39,038 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 36 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-10 11:01:39,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 197 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-10 11:01:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-10 11:01:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-10 11:01:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 67 states have internal predecessors, (78), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-10 11:01:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2024-11-10 11:01:39,085 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 93 [2024-11-10 11:01:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 11:01:39,086 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2024-11-10 11:01:39,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 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) [2024-11-10 11:01:39,086 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2024-11-10 11:01:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 11:01:39,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:01:39,095 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-10 11:01:39,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 11:01:39,096 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:01:39,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:01:39,097 INFO L85 PathProgramCache]: Analyzing trace with hash 721091456, now seen corresponding path program 1 times [2024-11-10 11:01:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:01:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825905323] [2024-11-10 11:01:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:01:39,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms