./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:30:40,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:30:40,366 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:30:40,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:30:40,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:30:40,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:30:40,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:30:40,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:30:40,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:30:40,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:30:40,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:30:40,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:30:40,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:30:40,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:30:40,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:30:40,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:30:40,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:30:40,403 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:30:40,404 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:40,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:30:40,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:40,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:30:40,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:30:40,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:30:40,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 [2025-01-09 17:30:40,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:30:40,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:30:40,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:30:40,658 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:30:40,659 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:30:40,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-01-09 17:30:41,859 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/58b49036c/bcb86b3d73dc4dd38bfbe05c73016685/FLAG05621524f [2025-01-09 17:30:42,356 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:30:42,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2025-01-09 17:30:42,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/58b49036c/bcb86b3d73dc4dd38bfbe05c73016685/FLAG05621524f [2025-01-09 17:30:42,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/58b49036c/bcb86b3d73dc4dd38bfbe05c73016685 [2025-01-09 17:30:42,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:30:42,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:30:42,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:30:42,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:30:42,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:30:42,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:30:42" (1/1) ... [2025-01-09 17:30:42,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aadf523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:42, skipping insertion in model container [2025-01-09 17:30:42,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:30:42" (1/1) ... [2025-01-09 17:30:42,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:30:42,779 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4499,4512] [2025-01-09 17:30:42,786 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4559,4572] [2025-01-09 17:30:43,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,785 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,787 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,789 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,800 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:43,800 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:30:44,405 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:30:44,415 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4499,4512] [2025-01-09 17:30:44,417 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i[4559,4572] [2025-01-09 17:30:44,452 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,453 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,454 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,496 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-01-09 17:30:44,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:44,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-01-09 17:30:44,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:30:44,749 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:30:44,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44 WrapperNode [2025-01-09 17:30:44,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:30:44,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:30:44,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:30:44,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:30:44,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,839 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-01-09 17:30:44,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:30:44,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:30:44,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:30:44,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:30:44,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,902 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 6, 16, 12]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 5, 16, 0]. The 493 writes are split as follows [0, 257, 232, 0, 0, 4]. [2025-01-09 17:30:44,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:30:44,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:30:44,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:30:44,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:30:44,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (1/1) ... [2025-01-09 17:30:44,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:44,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:30:44,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:30:44,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:30:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:30:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:30:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:30:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 17:30:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 17:30:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 17:30:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-01-09 17:30:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:30:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:30:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:30:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:30:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:30:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:30:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:30:45,222 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:30:45,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:30:52,315 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-01-09 17:30:52,315 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:30:52,325 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:30:52,326 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:30:52,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:30:52 BoogieIcfgContainer [2025-01-09 17:30:52,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:30:52,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:30:52,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:30:52,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:30:52,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:30:42" (1/3) ... [2025-01-09 17:30:52,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:30:52, skipping insertion in model container [2025-01-09 17:30:52,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:44" (2/3) ... [2025-01-09 17:30:52,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:30:52, skipping insertion in model container [2025-01-09 17:30:52,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:30:52" (3/3) ... [2025-01-09 17:30:52,334 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness_negated.i [2025-01-09 17:30:52,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:30:52,350 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness_negated.i that has 18 procedures, 122 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-01-09 17:30:52,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:30:52,404 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;@4222858d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:30:52,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:30:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 69 states have internal predecessors, (81), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 17:30:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 17:30:52,415 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:30:52,416 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2025-01-09 17:30:52,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:30:52,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:30:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash 69661278, now seen corresponding path program 1 times [2025-01-09 17:30:52,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:30:52,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063305771] [2025-01-09 17:30:52,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:30:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:32:00,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 17:32:01,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 17:32:01,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:32:01,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:32:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-09 17:32:05,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:32:05,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063305771] [2025-01-09 17:32:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063305771] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:32:05,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:32:05,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-09 17:32:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794837085] [2025-01-09 17:32:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:32:05,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 17:32:05,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:32:05,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 17:32:05,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 17:32:05,092 INFO L87 Difference]: Start difference. First operand has 102 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 69 states have internal predecessors, (81), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2025-01-09 17:32:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:32:06,115 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2025-01-09 17:32:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:32:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 63 [2025-01-09 17:32:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:32:06,122 INFO L225 Difference]: With dead ends: 199 [2025-01-09 17:32:06,122 INFO L226 Difference]: Without dead ends: 93 [2025-01-09 17:32:06,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 17:32:06,126 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 10 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:32:06,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 946 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-09 17:32:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-01-09 17:32:06,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2025-01-09 17:32:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 61 states have internal predecessors, (68), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 17:32:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2025-01-09 17:32:06,162 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 63 [2025-01-09 17:32:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:32:06,163 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2025-01-09 17:32:06,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2025-01-09 17:32:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2025-01-09 17:32:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 17:32:06,167 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:32:06,167 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1] [2025-01-09 17:32:06,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 17:32:06,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:32:06,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:32:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1211364311, now seen corresponding path program 1 times [2025-01-09 17:32:06,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:32:06,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311289367] [2025-01-09 17:32:06,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:32:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms