./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_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_capacity_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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:42:56,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:42:56,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:42:56,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:42:56,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:42:56,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:42:56,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:42:56,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:42:56,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:42:56,927 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:42:56,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:42:56,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:42:56,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:42:56,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:42:56,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:42:56,928 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:42:56,929 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:42:56,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:42:56,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:42:56,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:42:56,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:42:56,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:42:56,930 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 -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2025-03-08 17:42:57,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:42:57,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:42:57,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:42:57,160 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:42:57,161 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:42:57,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2025-03-08 17:42:58,271 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a8f0ab/c9d7db677e6548e292441a6eac5c073a/FLAG5395533b2 [2025-03-08 17:42:58,640 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:42:58,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2025-03-08 17:42:58,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a8f0ab/c9d7db677e6548e292441a6eac5c073a/FLAG5395533b2 [2025-03-08 17:42:58,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56a8f0ab/c9d7db677e6548e292441a6eac5c073a [2025-03-08 17:42:58,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:42:58,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:42:58,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:42:58,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:42:58,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:42:58,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:42:58" (1/1) ... [2025-03-08 17:42:58,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c3dd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:58, skipping insertion in model container [2025-03-08 17:42:58,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:42:58" (1/1) ... [2025-03-08 17:42:58,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:42:58,900 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_capacity_harness.i[4497,4510] [2025-03-08 17:42:58,905 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_capacity_harness.i[4557,4570] [2025-03-08 17:42:59,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,321 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:42:59,671 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:42:59,682 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_capacity_harness.i[4497,4510] [2025-03-08 17:42:59,682 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_capacity_harness.i[4557,4570] [2025-03-08 17:42:59,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,728 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,729 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,729 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,729 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,730 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,730 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,731 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,790 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:42:59,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-03-08 17:42:59,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:42:59,954 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:42:59,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59 WrapperNode [2025-03-08 17:42:59,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:42:59,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:42:59,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:42:59,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:42:59,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:42:59,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,058 INFO L138 Inliner]: procedures = 679, calls = 1682, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 617 [2025-03-08 17:43:00,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:43:00,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:43:00,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:43:00,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:43:00,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,137 INFO L175 MemorySlicer]: Split 306 memory accesses to 6 slices as follows [2, 238, 6, 3, 50, 7]. 78 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 0, 1, 10, 5]. The 238 writes are split as follows [0, 232, 2, 1, 3, 0]. [2025-03-08 17:43:00,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:43:00,173 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:43:00,173 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:43:00,173 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:43:00,173 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (1/1) ... [2025-03-08 17:43:00,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:43:00,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:43:00,201 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 17:43:00,204 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 17:43:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:43:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:43:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:43:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:43:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:43:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:43:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:43:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:43:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:43:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:43:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:43:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:43:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:43:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:43:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:43:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:43:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:43:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:43:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:43:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:43:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:43:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:43:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:43:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:43:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:43:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:43:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:43:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:43:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:43:00,456 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:43:00,457 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:43:00,489 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:43:00,535 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:43:00,629 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 17:43:00,633 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:43:06,177 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:43:06,206 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-03-08 17:43:06,207 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:43:06,219 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:43:06,220 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:43:06,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:43:06 BoogieIcfgContainer [2025-03-08 17:43:06,221 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:43:06,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:43:06,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:43:06,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:43:06,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:42:58" (1/3) ... [2025-03-08 17:43:06,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d71580a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:43:06, skipping insertion in model container [2025-03-08 17:43:06,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:42:59" (2/3) ... [2025-03-08 17:43:06,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d71580a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:43:06, skipping insertion in model container [2025-03-08 17:43:06,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:43:06" (3/3) ... [2025-03-08 17:43:06,229 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2025-03-08 17:43:06,239 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:43:06,240 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_capacity_harness.i that has 13 procedures, 122 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:43:06,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:43:06,288 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;@695a36ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:43:06,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:43:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-08 17:43:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 17:43:06,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:43:06,297 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:06,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:43:06,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:43:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash 14339677, now seen corresponding path program 1 times [2025-03-08 17:43:06,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:43:06,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854749448] [2025-03-08 17:43:06,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:06,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:43:10,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 17:43:10,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:43:10,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:10,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-08 17:43:11,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:43:11,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854749448] [2025-03-08 17:43:11,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854749448] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:43:11,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805395726] [2025-03-08 17:43:11,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:11,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:43:11,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:43:11,187 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 17:43:11,217 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 17:43:15,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 17:43:15,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:43:15,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:15,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:15,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 4065 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:43:15,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:43:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-08 17:43:15,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:43:15,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805395726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:43:15,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:43:15,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:43:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145416625] [2025-03-08 17:43:15,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:43:15,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:43:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:43:15,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:43:15,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:43:15,650 INFO L87 Difference]: Start difference. First operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 17:43:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:43:15,670 INFO L93 Difference]: Finished difference Result 237 states and 320 transitions. [2025-03-08 17:43:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:43:15,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2025-03-08 17:43:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:43:15,676 INFO L225 Difference]: With dead ends: 237 [2025-03-08 17:43:15,676 INFO L226 Difference]: Without dead ends: 117 [2025-03-08 17:43:15,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 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 17:43:15,680 INFO L435 NwaCegarLoop]: 152 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, 152 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 17:43:15,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 17:43:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-03-08 17:43:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-03-08 17:43:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-03-08 17:43:15,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2025-03-08 17:43:15,722 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 74 [2025-03-08 17:43:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:43:15,722 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2025-03-08 17:43:15,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 17:43:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2025-03-08 17:43:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 17:43:15,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:43:15,724 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:15,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 17:43:15,925 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 17:43:15,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:43:15,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:43:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1078467385, now seen corresponding path program 1 times [2025-03-08 17:43:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:43:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875167173] [2025-03-08 17:43:15,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:43:19,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 17:43:19,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:43:19,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:19,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 17:43:20,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:43:20,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875167173] [2025-03-08 17:43:20,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875167173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:43:20,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:43:20,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 17:43:20,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684293814] [2025-03-08 17:43:20,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:43:20,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 17:43:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:43:20,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 17:43:20,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:43:20,334 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 17:43:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:43:20,410 INFO L93 Difference]: Finished difference Result 208 states and 263 transitions. [2025-03-08 17:43:20,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 17:43:20,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2025-03-08 17:43:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:43:20,412 INFO L225 Difference]: With dead ends: 208 [2025-03-08 17:43:20,412 INFO L226 Difference]: Without dead ends: 118 [2025-03-08 17:43:20,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:43:20,413 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 17:43:20,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 17:43:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-08 17:43:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-08 17:43:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 75 states have internal predecessors, (87), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-03-08 17:43:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 148 transitions. [2025-03-08 17:43:20,421 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 148 transitions. Word has length 74 [2025-03-08 17:43:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:43:20,422 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 148 transitions. [2025-03-08 17:43:20,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 17:43:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 148 transitions. [2025-03-08 17:43:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 17:43:20,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:43:20,423 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:20,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:43:20,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:43:20,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:43:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 977555418, now seen corresponding path program 1 times [2025-03-08 17:43:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:43:20,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216773301] [2025-03-08 17:43:20,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:43:24,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 17:43:24,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:43:24,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:24,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-08 17:43:25,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:43:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216773301] [2025-03-08 17:43:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216773301] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:43:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091466245] [2025-03-08 17:43:25,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:25,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:43:25,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:43:25,037 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 17:43:25,038 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 17:43:28,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 17:43:29,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 17:43:29,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:29,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:29,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 17:43:29,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:43:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 17:43:29,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:43:29,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091466245] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:43:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:43:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 17:43:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295611609] [2025-03-08 17:43:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:43:29,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:43:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:43:29,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:43:29,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:43:29,973 INFO L87 Difference]: Start difference. First operand 118 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 17:43:31,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:43:31,562 INFO L93 Difference]: Finished difference Result 200 states and 255 transitions. [2025-03-08 17:43:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:43:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2025-03-08 17:43:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:43:31,564 INFO L225 Difference]: With dead ends: 200 [2025-03-08 17:43:31,564 INFO L226 Difference]: Without dead ends: 120 [2025-03-08 17:43:31,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 17:43:31,565 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 158 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:43:31,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 414 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 17:43:31,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-08 17:43:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-08 17:43:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 77 states have internal predecessors, (88), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2025-03-08 17:43:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2025-03-08 17:43:31,573 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 74 [2025-03-08 17:43:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:43:31,574 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2025-03-08 17:43:31,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 17:43:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2025-03-08 17:43:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-08 17:43:31,575 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:43:31,576 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2025-03-08 17:43:31,590 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 17:43:31,780 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 17:43:31,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:43:31,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:43:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash -436731657, now seen corresponding path program 1 times [2025-03-08 17:43:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:43:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031429202] [2025-03-08 17:43:31,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:31,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:43:35,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 17:43:35,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 17:43:35,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:35,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-08 17:43:36,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:43:36,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031429202] [2025-03-08 17:43:36,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031429202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:43:36,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138240867] [2025-03-08 17:43:36,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:36,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:43:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:43:36,382 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 17:43:36,383 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 17:43:40,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-08 17:43:40,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-08 17:43:40,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:40,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:43:40,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 4195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:43:40,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:43:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 17:43:41,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:43:41,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138240867] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:43:41,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:43:41,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-08 17:43:41,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064975841] [2025-03-08 17:43:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:43:41,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:43:41,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:43:41,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:43:41,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-08 17:43:41,869 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-08 17:43:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:43:43,885 INFO L93 Difference]: Finished difference Result 190 states and 237 transitions. [2025-03-08 17:43:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 17:43:43,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 89 [2025-03-08 17:43:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:43:43,887 INFO L225 Difference]: With dead ends: 190 [2025-03-08 17:43:43,887 INFO L226 Difference]: Without dead ends: 118 [2025-03-08 17:43:43,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-08 17:43:43,888 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 157 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 17:43:43,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 519 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 17:43:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-08 17:43:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-08 17:43:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.162162162162162) internal successors, (86), 75 states have internal predecessors, (86), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-03-08 17:43:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2025-03-08 17:43:43,901 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 89 [2025-03-08 17:43:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:43:43,902 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2025-03-08 17:43:43,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-08 17:43:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2025-03-08 17:43:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-08 17:43:43,903 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:43:43,903 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:43,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 17:43:44,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:43:44,104 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:43:44,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:43:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash -115315227, now seen corresponding path program 1 times [2025-03-08 17:43:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:43:44,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244552238] [2025-03-08 17:43:44,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:43:47,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-08 17:43:49,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 17:43:49,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:43:49,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 17:43:49,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742715484] [2025-03-08 17:43:49,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:43:49,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:43:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:43:49,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:43:49,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 17:43:53,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes.