./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.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.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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:30:34,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:30:34,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:30:34,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:30:34,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:30:34,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:30:34,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:30:34,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:30:34,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:30:34,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:30:34,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:30:34,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:30:34,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:30:34,709 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:34,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:30:34,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:34,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:30:34,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:30:34,710 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 -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2025-01-09 17:30:34,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:30:34,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:30:34,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:30:34,919 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:30:34,919 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:30:34,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-01-09 17:30:36,030 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d966a5640/cd116e465ef84e359b054b89e1799905/FLAGa9d34aa25 [2025-01-09 17:30:36,413 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:30:36,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2025-01-09 17:30:36,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d966a5640/cd116e465ef84e359b054b89e1799905/FLAGa9d34aa25 [2025-01-09 17:30:36,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d966a5640/cd116e465ef84e359b054b89e1799905 [2025-01-09 17:30:36,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:30:36,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:30:36,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:30:36,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:30:36,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:30:36,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:30:36" (1/1) ... [2025-01-09 17:30:36,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d8be8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:36, skipping insertion in model container [2025-01-09 17:30:36,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:30:36" (1/1) ... [2025-01-09 17:30:36,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:30:36,744 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.i[4499,4512] [2025-01-09 17:30:36,751 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.i[4559,4572] [2025-01-09 17:30:37,218 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:30:37,728 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:30:37,738 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.i[4499,4512] [2025-01-09 17:30:37,739 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.i[4559,4572] [2025-01-09 17:30:37,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,774 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,780 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-01-09 17:30:37,877 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,877 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:30:37,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-01-09 17:30:37,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:30:38,064 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:30:38,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38 WrapperNode [2025-01-09 17:30:38,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:30:38,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:30:38,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:30:38,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:30:38,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,165 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2025-01-09 17:30:38,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:30:38,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:30:38,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:30:38,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:30:38,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,234 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 12, 16, 6]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 0, 16, 5]. The 493 writes are split as follows [0, 257, 232, 4, 0, 0]. [2025-01-09 17:30:38,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:30:38,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:30:38,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:30:38,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:30:38,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (1/1) ... [2025-01-09 17:30:38,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:30:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:30:38,310 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 17:30:38,313 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 17:30:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:30:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:30:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:30:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:30:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:30:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:30:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:30:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:30:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2025-01-09 17:30:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 17:30:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 17:30:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:30:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:30:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:30:38,335 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:30:38,335 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:30:38,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:30:38,568 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:30:38,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:30:45,436 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-01-09 17:30:45,436 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:30:45,445 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:30:45,446 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:30:45,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:30:45 BoogieIcfgContainer [2025-01-09 17:30:45,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:30:45,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:30:45,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:30:45,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:30:45,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:30:36" (1/3) ... [2025-01-09 17:30:45,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b247b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:30:45, skipping insertion in model container [2025-01-09 17:30:45,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:30:38" (2/3) ... [2025-01-09 17:30:45,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b247b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:30:45, skipping insertion in model container [2025-01-09 17:30:45,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:30:45" (3/3) ... [2025-01-09 17:30:45,453 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2025-01-09 17:30:45,462 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:30:45,465 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_destroy_secure_harness.i that has 18 procedures, 122 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-01-09 17:30:45,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:30:45,509 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;@7ed86706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:30:45,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:30:45,513 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 17:30:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 17:30:45,519 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:30:45,519 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 17:30:45,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:30:45,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:30:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash 69661278, now seen corresponding path program 1 times [2025-01-09 17:30:45,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:30:45,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756303427] [2025-01-09 17:30:45,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:30:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:31:50,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 17:31:50,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 17:31:50,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:31:50,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:31:54,342 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 17:31:54,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:31:54,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756303427] [2025-01-09 17:31:54,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756303427] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:31:54,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:31:54,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-09 17:31:54,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715545197] [2025-01-09 17:31:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:31:54,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 17:31:54,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:31:54,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 17:31:54,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 17:31:54,363 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 17:31:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:31:55,369 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2025-01-09 17:31:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:31:55,371 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 17:31:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:31:55,375 INFO L225 Difference]: With dead ends: 199 [2025-01-09 17:31:55,375 INFO L226 Difference]: Without dead ends: 93 [2025-01-09 17:31:55,381 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 17:31:55,382 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 17:31:55,383 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 17:31:55,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-01-09 17:31:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2025-01-09 17:31:55,410 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 17:31:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2025-01-09 17:31:55,414 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 63 [2025-01-09 17:31:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:31:55,415 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2025-01-09 17:31:55,415 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 17:31:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2025-01-09 17:31:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 17:31:55,417 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:31:55,417 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 17:31:55,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 17:31:55,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:31:55,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:31:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1558042551, now seen corresponding path program 1 times [2025-01-09 17:31:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:31:55,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232095666] [2025-01-09 17:31:55,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:31:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms