./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_array_list_init_dynamic_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 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:45:38,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:45:38,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:45:38,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:45:38,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:45:39,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:45:39,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:45:39,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:45:39,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:45:39,021 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:45:39,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:45:39,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:45:39,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:45:39,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:45:39,023 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:45:39,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:45:39,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:45:39,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:45:39,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:45:39,024 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:45:39,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:45:39,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:45:39,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:45:39,026 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/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 -> 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad [2025-03-08 17:45:39,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:45:39,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:45:39,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:45:39,256 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:45:39,256 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:45:39,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2025-03-08 17:45:40,418 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6125350f7/4260d82a5ec04717826a85d09302d9dc/FLAG9c224adb5 [2025-03-08 17:45:40,860 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:45:40,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2025-03-08 17:45:40,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6125350f7/4260d82a5ec04717826a85d09302d9dc/FLAG9c224adb5 [2025-03-08 17:45:40,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6125350f7/4260d82a5ec04717826a85d09302d9dc [2025-03-08 17:45:40,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:45:40,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:45:40,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:45:40,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:45:40,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:45:40,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:45:40" (1/1) ... [2025-03-08 17:45:40,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8f1ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:40, skipping insertion in model container [2025-03-08 17:45:40,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:45:40" (1/1) ... [2025-03-08 17:45:41,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:45:41,218 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_array_list_init_dynamic_harness.i[4501,4514] [2025-03-08 17:45:41,224 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_array_list_init_dynamic_harness.i[4561,4574] [2025-03-08 17:45:41,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,679 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,679 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,693 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,694 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,695 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,695 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,696 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,697 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,957 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:41,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:45:42,048 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:45:42,059 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_array_list_init_dynamic_harness.i[4501,4514] [2025-03-08 17:45:42,060 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_array_list_init_dynamic_harness.i[4561,4574] [2025-03-08 17:45:42,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,124 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,133 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:45:42,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2025-03-08 17:45:42,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:45:42,359 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:45:42,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42 WrapperNode [2025-03-08 17:45:42,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:45:42,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:45:42,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:45:42,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:45:42,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,455 INFO L138 Inliner]: procedures = 679, calls = 1558, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 596 [2025-03-08 17:45:42,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:45:42,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:45:42,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:45:42,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:45:42,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,535 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 5, 6, 26]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 5, 1, 5]. The 238 writes are split as follows [0, 232, 0, 1, 5]. [2025-03-08 17:45:42,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:45:42,577 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:45:42,577 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:45:42,577 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:45:42,578 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (1/1) ... [2025-03-08 17:45:42,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:45:42,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:45:42,605 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) [2025-03-08 17:45:42,609 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 [2025-03-08 17:45:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:45:42,627 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:45:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-08 17:45:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:45:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:45:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:45:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:45:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:45:42,845 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:45:42,847 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:45:42,882 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:45:42,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:45:42,922 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:45:42,967 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-08 17:45:43,002 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-08 17:45:43,007 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:45:43,012 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-08 17:45:48,298 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3202: call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2025-03-08 17:45:48,353 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2025-03-08 17:45:48,353 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:45:48,366 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:45:48,367 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:45:48,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:45:48 BoogieIcfgContainer [2025-03-08 17:45:48,367 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:45:48,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:45:48,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:45:48,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:45:48,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:45:40" (1/3) ... [2025-03-08 17:45:48,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e801049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:45:48, skipping insertion in model container [2025-03-08 17:45:48,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:45:42" (2/3) ... [2025-03-08 17:45:48,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e801049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:45:48, skipping insertion in model container [2025-03-08 17:45:48,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:45:48" (3/3) ... [2025-03-08 17:45:48,378 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2025-03-08 17:45:48,391 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:45:48,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_init_dynamic_harness.i that has 20 procedures, 158 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-03-08 17:45:48,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:45:48,451 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;@24d962e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:45:48,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:45:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 90 states have (on average 1.211111111111111) internal successors, (109), 91 states have internal predecessors, (109), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-08 17:45:48,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-08 17:45:48,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:48,465 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] [2025-03-08 17:45:48,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:48,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1295523421, now seen corresponding path program 1 times [2025-03-08 17:45:48,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:48,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928852354] [2025-03-08 17:45:48,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:48,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:53,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 17:45:53,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 17:45:53,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:53,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:53,897 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 17:45:53,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:53,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928852354] [2025-03-08 17:45:53,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928852354] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:45:53,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675110145] [2025-03-08 17:45:53,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:53,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:45:53,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:45:53,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:45:53,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 17:45:58,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 17:45:58,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 17:45:58,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:58,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:58,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 3988 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:45:58,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:45:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 17:45:58,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:45:58,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675110145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:58,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:45:58,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:45:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932612671] [2025-03-08 17:45:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:58,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:45:58,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:58,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:45:58,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:45:58,723 INFO L87 Difference]: Start difference. First operand has 142 states, 90 states have (on average 1.211111111111111) internal successors, (109), 91 states have internal predecessors, (109), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 17:45:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:58,752 INFO L93 Difference]: Finished difference Result 272 states and 367 transitions. [2025-03-08 17:45:58,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:45:58,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2025-03-08 17:45:58,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:58,760 INFO L225 Difference]: With dead ends: 272 [2025-03-08 17:45:58,760 INFO L226 Difference]: Without dead ends: 135 [2025-03-08 17:45:58,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:45:58,766 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:58,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 17:45:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-03-08 17:45:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2025-03-08 17:45:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 85 states have internal predecessors, (99), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 17:45:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2025-03-08 17:45:58,801 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 64 [2025-03-08 17:45:58,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:58,802 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2025-03-08 17:45:58,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 17:45:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2025-03-08 17:45:58,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 17:45:58,804 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:58,804 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] [2025-03-08 17:45:58,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 17:45:59,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 17:45:59,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:59,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1332439736, now seen corresponding path program 1 times [2025-03-08 17:45:59,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:59,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050739658] [2025-03-08 17:45:59,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:59,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:46:02,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 17:46:03,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 17:46:03,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:46:03,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:46:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 17:46:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:46:04,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050739658] [2025-03-08 17:46:04,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050739658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:46:04,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:46:04,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 17:46:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154240482] [2025-03-08 17:46:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:46:04,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 17:46:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:46:04,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 17:46:04,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 17:46:04,715 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 17:46:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:46:04,838 INFO L93 Difference]: Finished difference Result 251 states and 312 transitions. [2025-03-08 17:46:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 17:46:04,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2025-03-08 17:46:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:46:04,841 INFO L225 Difference]: With dead ends: 251 [2025-03-08 17:46:04,841 INFO L226 Difference]: Without dead ends: 136 [2025-03-08 17:46:04,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 17:46:04,842 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 17:46:04,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 17:46:04,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-03-08 17:46:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2025-03-08 17:46:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 86 states have internal predecessors, (100), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 17:46:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 170 transitions. [2025-03-08 17:46:04,857 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 170 transitions. Word has length 70 [2025-03-08 17:46:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:46:04,858 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 170 transitions. [2025-03-08 17:46:04,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 17:46:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 170 transitions. [2025-03-08 17:46:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 17:46:04,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:46:04,860 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] [2025-03-08 17:46:04,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:46:04,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:46:04,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:46:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1297818282, now seen corresponding path program 1 times [2025-03-08 17:46:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:46:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492647341] [2025-03-08 17:46:04,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:46:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:46:08,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 17:46:09,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 17:46:09,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:46:09,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:46:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 17:46:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:46:10,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492647341] [2025-03-08 17:46:10,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492647341] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:46:10,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091047153] [2025-03-08 17:46:10,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:46:10,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:46:10,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:46:10,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:46:10,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 17:46:14,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 17:46:15,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 17:46:15,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:46:15,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:46:15,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:46:15,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:46:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 17:46:15,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 17:46:16,630 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 17:46:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091047153] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 17:46:16,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 17:46:16,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-08 17:46:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454605546] [2025-03-08 17:46:16,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 17:46:16,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 17:46:16,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:46:16,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 17:46:16,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:46:16,632 INFO L87 Difference]: Start difference. First operand 136 states and 170 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 17:46:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:46:16,963 INFO L93 Difference]: Finished difference Result 256 states and 319 transitions. [2025-03-08 17:46:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:46:16,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2025-03-08 17:46:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:46:16,966 INFO L225 Difference]: With dead ends: 256 [2025-03-08 17:46:16,966 INFO L226 Difference]: Without dead ends: 139 [2025-03-08 17:46:16,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-03-08 17:46:16,967 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 17:46:16,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 501 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 17:46:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-03-08 17:46:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-03-08 17:46:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 87 states have (on average 1.1839080459770115) internal successors, (103), 89 states have internal predecessors, (103), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-08 17:46:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 173 transitions. [2025-03-08 17:46:16,975 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 173 transitions. Word has length 71 [2025-03-08 17:46:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:46:16,976 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 173 transitions. [2025-03-08 17:46:16,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 17:46:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 173 transitions. [2025-03-08 17:46:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 17:46:16,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:46:16,977 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1] [2025-03-08 17:46:16,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 17:46:17,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-08 17:46:17,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:46:17,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:46:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash 697489208, now seen corresponding path program 2 times [2025-03-08 17:46:17,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:46:17,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882836966] [2025-03-08 17:46:17,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:46:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:46:21,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-08 17:46:21,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:46:21,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 17:46:21,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:46:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-08 17:46:23,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:46:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882836966] [2025-03-08 17:46:23,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882836966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:46:23,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694704903] [2025-03-08 17:46:23,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:46:23,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:46:23,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:46:23,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:46:23,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 17:46:27,922 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes.