./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_length_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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:34:46,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:34:46,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:34:46,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:34:46,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:34:46,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:34:46,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:34:46,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:34:46,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:34:46,411 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:34:46,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:34:46,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:34:46,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:34:46,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:34:46,412 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:34:46,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:34:46,413 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:34:46,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:34:46,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:34:46,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:34:46,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:34:46,415 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 -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2025-03-04 02:34:46,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:34:46,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:34:46,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:34:46,632 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:34:46,632 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:34:46,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2025-03-04 02:34:47,733 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e4eb81e/2927909f27bd4ce6b2ba7e0c24a836d7/FLAGcdd92ec71 [2025-03-04 02:34:48,123 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:34:48,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2025-03-04 02:34:48,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e4eb81e/2927909f27bd4ce6b2ba7e0c24a836d7/FLAGcdd92ec71 [2025-03-04 02:34:48,307 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8e4eb81e/2927909f27bd4ce6b2ba7e0c24a836d7 [2025-03-04 02:34:48,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:34:48,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:34:48,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:34:48,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:34:48,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:34:48,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:34:48" (1/1) ... [2025-03-04 02:34:48,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b80c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:48, skipping insertion in model container [2025-03-04 02:34:48,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:34:48" (1/1) ... [2025-03-04 02:34:48,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:34:48,551 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_length_harness.i[4495,4508] [2025-03-04 02:34:48,558 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_length_harness.i[4555,4568] [2025-03-04 02:34:49,044 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:34:49,430 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:34:49,441 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_length_harness.i[4495,4508] [2025-03-04 02:34:49,444 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_length_harness.i[4555,4568] [2025-03-04 02:34:49,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,508 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,509 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:49,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-03-04 02:34:49,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:34:49,786 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:34:49,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49 WrapperNode [2025-03-04 02:34:49,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:34:49,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:34:49,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:34:49,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:34:49,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,901 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2025-03-04 02:34:49,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:34:49,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:34:49,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:34:49,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:34:49,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,974 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 238, 3, 6, 47, 7]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 1, 0, 10, 5]. The 238 writes are split as follows [0, 232, 1, 2, 3, 0]. [2025-03-04 02:34:49,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:49,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,004 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:34:50,035 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:34:50,036 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:34:50,036 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:34:50,037 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (1/1) ... [2025-03-04 02:34:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:34:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:50,067 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) [2025-03-04 02:34:50,072 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 [2025-03-04 02:34:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:34:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:34:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:34:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:34:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:34:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:34:50,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:34:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:34:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:34:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:34:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:34:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:34:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:34:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:34:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:34:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:34:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:34:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:34:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:34:50,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:34:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:34:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:34:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:34:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:34:50,313 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:34:50,315 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:34:50,354 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:34:50,404 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:34:50,485 INFO L1325 $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; [2025-03-04 02:34:50,489 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:34:55,935 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:34:55,969 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2025-03-04 02:34:55,969 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:34:55,978 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:34:55,978 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:34:55,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:34:55 BoogieIcfgContainer [2025-03-04 02:34:55,979 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:34:55,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:34:55,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:34:55,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:34:55,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:34:48" (1/3) ... [2025-03-04 02:34:55,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48116a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:34:55, skipping insertion in model container [2025-03-04 02:34:55,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:49" (2/3) ... [2025-03-04 02:34:55,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48116a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:34:55, skipping insertion in model container [2025-03-04 02:34:55,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:34:55" (3/3) ... [2025-03-04 02:34:55,987 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2025-03-04 02:34:55,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:34:55,999 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_length_harness.i that has 14 procedures, 123 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:34:56,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:34:56,058 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;@5d96ee21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:34:56,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:34:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2025-03-04 02:34:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 02:34:56,070 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:56,070 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-03-04 02:34:56,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:56,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1262517749, now seen corresponding path program 1 times [2025-03-04 02:34:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:56,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45769780] [2025-03-04 02:34:56,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:00,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 02:35:00,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 02:35:00,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:00,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 02:35:00,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:00,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45769780] [2025-03-04 02:35:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45769780] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941400713] [2025-03-04 02:35:00,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:00,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:00,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:00,921 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) [2025-03-04 02:35:00,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:35:04,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 02:35:05,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 02:35:05,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:05,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:05,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 4078 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:35:05,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 02:35:05,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:05,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941400713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:05,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:05,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:35:05,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662141365] [2025-03-04 02:35:05,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:05,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:35:05,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:05,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:35:05,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:35:05,500 INFO L87 Difference]: Start difference. First operand has 123 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-04 02:35:05,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:05,524 INFO L93 Difference]: Finished difference Result 239 states and 319 transitions. [2025-03-04 02:35:05,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:35:05,526 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-03-04 02:35:05,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:05,531 INFO L225 Difference]: With dead ends: 239 [2025-03-04 02:35:05,531 INFO L226 Difference]: Without dead ends: 114 [2025-03-04 02:35:05,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:35:05,536 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 [2025-03-04 02:35:05,538 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] [2025-03-04 02:35:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-04 02:35:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-04 02:35:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-04 02:35:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2025-03-04 02:35:05,567 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2025-03-04 02:35:05,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:05,567 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2025-03-04 02:35:05,568 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, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-04 02:35:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2025-03-04 02:35:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 02:35:05,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:05,570 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-03-04 02:35:05,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:35:05,771 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 [2025-03-04 02:35:05,771 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:05,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:05,772 INFO L85 PathProgramCache]: Analyzing trace with hash 493357272, now seen corresponding path program 1 times [2025-03-04 02:35:05,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:05,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237362284] [2025-03-04 02:35:05,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:05,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:09,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 02:35:09,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 02:35:09,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:09,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-04 02:35:10,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:10,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237362284] [2025-03-04 02:35:10,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237362284] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:10,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:35:10,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 02:35:10,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724032897] [2025-03-04 02:35:10,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:10,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 02:35:10,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:10,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 02:35:10,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:35:10,254 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-04 02:35:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:10,345 INFO L93 Difference]: Finished difference Result 202 states and 249 transitions. [2025-03-04 02:35:10,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 02:35:10,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-03-04 02:35:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:10,347 INFO L225 Difference]: With dead ends: 202 [2025-03-04 02:35:10,349 INFO L226 Difference]: Without dead ends: 115 [2025-03-04 02:35:10,349 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 [2025-03-04 02:35:10,351 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 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 [2025-03-04 02:35:10,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 02:35:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-04 02:35:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2025-03-04 02:35:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 73 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-04 02:35:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2025-03-04 02:35:10,368 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 71 [2025-03-04 02:35:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:10,370 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2025-03-04 02:35:10,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-04 02:35:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2025-03-04 02:35:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 02:35:10,374 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:10,375 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-03-04 02:35:10,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:35:10,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:10,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -137101353, now seen corresponding path program 1 times [2025-03-04 02:35:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:10,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725732531] [2025-03-04 02:35:10,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:14,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 02:35:14,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 02:35:14,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:14,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:35:14,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:14,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725732531] [2025-03-04 02:35:14,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725732531] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:14,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453592200] [2025-03-04 02:35:14,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:14,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:14,950 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) [2025-03-04 02:35:14,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:35:19,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 02:35:19,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 02:35:19,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:19,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:19,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 4081 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:35:19,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-04 02:35:20,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453592200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:20,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:20,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:35:20,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079354597] [2025-03-04 02:35:20,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:20,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:35:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:20,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:35:20,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:35:20,171 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:35:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:21,448 INFO L93 Difference]: Finished difference Result 194 states and 241 transitions. [2025-03-04 02:35:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:35:21,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2025-03-04 02:35:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:21,451 INFO L225 Difference]: With dead ends: 194 [2025-03-04 02:35:21,451 INFO L226 Difference]: Without dead ends: 117 [2025-03-04 02:35:21,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:35:21,452 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:21,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 02:35:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-03-04 02:35:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-03-04 02:35:21,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1506849315068493) internal successors, (84), 75 states have internal predecessors, (84), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2025-03-04 02:35:21,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions. [2025-03-04 02:35:21,461 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 71 [2025-03-04 02:35:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:21,461 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 144 transitions. [2025-03-04 02:35:21,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:35:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2025-03-04 02:35:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-04 02:35:21,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:21,464 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-03-04 02:35:21,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:35:21,664 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 [2025-03-04 02:35:21,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:21,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1054049366, now seen corresponding path program 1 times [2025-03-04 02:35:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493490555] [2025-03-04 02:35:21,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:25,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-04 02:35:25,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-04 02:35:25,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:25,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:35:26,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:26,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493490555] [2025-03-04 02:35:26,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493490555] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:26,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671805312] [2025-03-04 02:35:26,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:26,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:26,573 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) [2025-03-04 02:35:26,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:35:30,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-04 02:35:31,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-04 02:35:31,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:31,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:31,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:35:31,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 02:35:32,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:32,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671805312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:32,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:32,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 02:35:32,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996257503] [2025-03-04 02:35:32,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:32,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:35:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:32,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:35:32,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 02:35:32,308 INFO L87 Difference]: Start difference. First operand 117 states and 144 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:35:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:34,530 INFO L93 Difference]: Finished difference Result 183 states and 222 transitions. [2025-03-04 02:35:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:35:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 86 [2025-03-04 02:35:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:34,532 INFO L225 Difference]: With dead ends: 183 [2025-03-04 02:35:34,532 INFO L226 Difference]: Without dead ends: 115 [2025-03-04 02:35:34,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:35:34,533 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:34,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-04 02:35:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-04 02:35:34,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2025-03-04 02:35:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 73 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-04 02:35:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2025-03-04 02:35:34,540 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 86 [2025-03-04 02:35:34,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:34,540 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2025-03-04 02:35:34,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:35:34,540 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2025-03-04 02:35:34,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-04 02:35:34,541 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:34,541 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-03-04 02:35:34,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:35:34,742 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 [2025-03-04 02:35:34,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:34,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -771761892, now seen corresponding path program 1 times [2025-03-04 02:35:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:34,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764038726] [2025-03-04 02:35:34,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:34,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:38,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-04 02:35:39,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-04 02:35:39,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:39,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:46,222 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-03-04 02:35:46,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:46,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764038726] [2025-03-04 02:35:46,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764038726] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:46,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343118839] [2025-03-04 02:35:46,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:46,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:46,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:46,226 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) [2025-03-04 02:35:46,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:35:50,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes.